Polar Bear Club was an American post-hardcore band from Rochester and Syracuse in upstate New York. Formed in 2005, the band underwent multiple line-up changes, with vocalist Jimmy Stadt and lead guit
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5672b664601445cbd0e84fcd140a9261559924c836083e92eb91ceac02c2df. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14544c04-7f81-402d-a229-fa8aca500cbc.json and https://artists.proofprofile.net/proofs/artist/14544c04-7f81-402d-a229-fa8aca500cbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Off The Board: A Studio 4 Family Compilation
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d944eb31d654780cb8f1ea8dd5c7e23e10782f520114690390c2c812828b01. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f325879884e5e63c4eea9b677397a5c0c2d604af2fd9997b83a1995aa4e35fb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a3ad43c357fe55ad7c5fdf36b31ef8d6b1428178d2bcd9721bde6c47d40289. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aa2c547921df28237babbb794f1fe50cb95121d6c20cda56cd738019e56b8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71013b71cfd35386d502c1bf65099efd7653c9155c5091a5eb4c97847418cc26. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f542bc65d1572d2bfe50693502bad3a3be4ec5936a0a82e865224f1a6cbb53. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9861465c0412ad6ab108c2f36189527f2d311d090dd189398f75f973240933a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdbe73a3f929440ffc80010a78a183c822d512a79f9284ffc12f9029d7486a4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaae638c6345832e21b1ff7016216a1a6c9f267baf8d80b3b686e45f296f7b1b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aac49037e2978affa767e838782cbc699bd399668409b7ee5b4364821b16a7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b294c0d000b082b1fec6458b795461d6464fb09bc11c8d47455e2f85e618748. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0ef95d2a769ec01b845effc4363429eb0d1f7176f2b205e20d5825cec219df. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e63131f250da36b970c392bc4767d70f81b83ae789f8e9e6aa7025aaa6a9a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf8b5339f961821bd23ce4c0dd74eed7f7679b13cdf479e8eeba572cd934d83. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e37b0df8d885d81512f3951f9b008b2f5afeb335f96a9457a317ced9d83dfdc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a1534e87dba905537509df91508fe5a935c8a5bdfac76a4c93f1b0ddb8f86c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMCE71300628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e24c81c725d8a4aa071e8295730e4910aa832a955b5cf2d27626624183d69be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41621b6ce8ff22e0988ae460debf1590fa4087985e45552b827da90498a354a9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5361121dec88064ef38e7f7e90a36ee126efd442852e225923bd95cbaabef26e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8161c3199e51300043752875bb7db79332195b7fcb3fb3a92080a8f83284e4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111cdf5d74f01bb7e91f348b1fe84d2a6c2e445d62945a15464c1fb2a5e0049. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af173e413b71fb7a7cf71537d6f039e1905df938881c4b9f226e1eb3a69960a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2030d7a6b54c73de85c8a027243976094007bc5ffa95b27c1ae77a0c432e815. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dc002311932ce2db843a08df82369b341f4f44e69e4e1598fc30b2d3fd8a59. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEK71322211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6f3e360a73964fc50376cc1f35fb4711b39e5b479c87fc0081d6d15b3d2f79. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7219e2893caabbe598487265b03f6a81f78e8f2cde902dd88e46cd85795227f3. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a7dfbde2a2dbdb2dc6bdb60075d2a434819d340675b6d639511f3ee8cdafd1. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5228d3f7c7d5266fb4a53952f525e31b952b1729d0820832a1f8e4a3588a09e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6c6c2be51ee0fafb56fbd715e1e41c95b60c51099de3287fc51027c0c1a15. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13f9807dad2b7e5c1eefe7ff3f47f6f915afb3e9851f1f2d032ebaa784d3bba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685df770b8aed1dd776ad90fa11000994839b3479ce0df9e55d3ed34b8ab842f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7542c6ff79edbb5b5c781d6129416a78535d40984cd8e7a17b20f0555cd59abe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6511f5842d67aad6e118c30879247c29a2cc5c3d2333e74c86119f03cf1ed48a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc9ff4264783bd1374451c2a75f6d46fdd2b412896816fe03efc67e4c130083. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc3f960d83f5ce73502fd2ef68d868b717833c978f32d66c0a75c0b9adc42bf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac87d5170891de25f65b8bc4d2f6754710c5d9d1475b459007063e862282c299. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe593ab1ed7050f2d645c4630b09f1494ce601b694b4aa91a87c70427ed4b3114. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a57c3f6bb3270cfd4dd9e365df6c72735446ccec2c81524eee34d518858603. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa992ac169cc9f323404a71542402444feee8b6c8ee8fa4534ec67845a7d5dc9a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fac7246d5cdce5e179a2686f2feb3c3bba05bcda9e401781f74f70806b84f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABC1138813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae48a13cf69ad0232c4ee793132adbd4d444660263f62d1b27d26e7b6709596. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d0762ad970ec83bf2aa5a9cff0914547edb5d8035bf14f54b1773104244b2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62edff9fa33774ff884b71d57400b54a0b07c5ecd1bb90cd84c3f450421ba0a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ab23e3c8e764884b631493cf46131e6d1d88c5e98b77841f683bae79cef1cc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2f8157ac3f4b7050cfec2e06f29935ed2ac61e72be709363b128758aca4135. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a04dce2d1c510148b59414701163daf436d0159d2f88c0d4285570a7c59faa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7256fe8e0d8ec2cc25be1406ba72d180812c5e855c671f254b965a40994ec7a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88186e6c8d6101976db2c60054ef0f955307c6b5ea58005cd9ac50af6e26f129. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQU71105008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753c2fc23e45dbbfc46e6aaac141fef12a142e37b073b2f3a98dc691f7abf89e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39eb5e673433428ed04bf6a7c3d79f2ce7ef43513fe0c9c422ad3397501a56cd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0804a475a51873bc567ce7e83be619bc19db0d7ef45c9ee3b2d92ce20bbb80d2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af6c2f0101934392dd10786d52f985bbfcd73b65919e34899cab4ed5fc056e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb4fcc9538f07037c11f7fedd54ce3d56956aa5c00e9ca5d1c08c03547ed99b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af518d2733a3e29cb72bd41f30efa21115022f444ba4daa04a2545671bee1ba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda66e64de91b3af90e33d3c45d733c7c8f78eeb1d3dd4c4f4d84c07549ce94c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USF461200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6f3e360a73964fc50376cc1f35fb4711b39e5b479c87fc0081d6d15b3d2f79. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7219e2893caabbe598487265b03f6a81f78e8f2cde902dd88e46cd85795227f3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a7dfbde2a2dbdb2dc6bdb60075d2a434819d340675b6d639511f3ee8cdafd1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e6c6c2be51ee0fafb56fbd715e1e41c95b60c51099de3287fc51027c0c1a15. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y71115308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb19b246f4797cad37723df5033bc4e01468a188aeac1622b0acec2a054544d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ae50ae4d9b02c45ce562fb0860e8d5566332f09fe1b6bddf3474bac1a0ada0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9093a3ec7ee1a7d8588534a4e7734eba6c2bddab3ba362e9cb7da1e4f1081fe5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfeb3608a50900449ee87f75cd73525fa4df517b9b13e73dc1bc9c1922d2bb1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a09006ad091b24239227d461bbfe883881ba5f22907c1f9475b07f44e4bf185. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2Y70912702.