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 0x5df3b617ea477a52a923bc6c04d96a10a931f8166a607a42b625a1e20223214a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffd411bf-4457-42bb-b50b-e841b4ea7f69.json and https://artists.proofprofile.net/proofs/artist/ffd411bf-4457-42bb-b50b-e841b4ea7f69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2c6cd01c762b579ca0066301e25064d44743727b29431ba3ac63303d94ce5d1a. 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/QZZ972453609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2fbb4fe1f5b2eb2dc2e0e196d0671da3b615f64c8b5c5751de885628c7cc7c. 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/QZZ972464235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977de558d35ba82a3a26c071e260fcc1210806bb58386ff15ad1c9773d5f0cb8. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZDFP2001732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814fdd1d6bac4f8739ed895242c38e1491e256ed62f7f5f0666dac0b9b767993. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXA3S2501097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386ae785351263a71af9b216b953b498af39429af27a931e9746a2661a6abeca. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXA3S2501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf606ada53c877cb276a7714f4335bdc48ef3033c6e9b8b45bd0298215894703. 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/IEWGI2313832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304f76ebb992a79b741f2192d180613e7b159ad38ea1c14ae53f36028b812db2. 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/IEWGI2339530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e548761f55b8f8e07ed1e0ac77f46e17b50c48416e05ea533aebcac13bc7be3. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/IEWGI2367609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2f3afb6b553b52e4e367257db217da6418661de87493b547a4bd632568dc63. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/IEWGI2367612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4938ddd54b3e3d6d74f1e221e11ec5279308a7ef70ede06bab85fca17942b3e. 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/QZZ972371364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366b33898b1566321661d8ff79469507ea881c734cae9b926d12f807f8f72744. 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/QZZ972405409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f9ad724c2871325f2d2338d368bee0e9cf838e547cfa32b157410c696c5b16. 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/QZZ972460157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf657bd34426f68dd396a49cc5770006d6c12f10ca552b23cbc00ab93fabc18a7. 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/QZZ972460494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4df1bc33f3de085975ea905df90d028d40f1b98c0811447f781f24d7cda620. 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/QZZ972460495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84676fa78b37705c1660badd583d53d0ffe066c5406a1e4130b612c3653f38ac. 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/QZZ972460496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695041b563f601872572c72aa5cc940eb28f9c143482fa193cc53964a6364098. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/OP9X98129054.
Sarhoş Palavraları Ve Bekar Evinde Kör Sinekler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c2341b68c794a363586ef00cc5a9b7d025e3e1d7efc0a1dd545fb531e14014. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BX4IU2302874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1dd63b4daa050017c937ece6782e56b8a2c4262a35af6e1d1721d9d3a748dd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ZPXL17754869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420699e8a9745fdd2fc0314bdd01d063ae86cd5ff6155c1a396a09afd8068414. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA5KR2452500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b38cf28d8e002c77125b2c60de3080157eb9cd1969d7ee02be926f3d428435. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZW9L2238102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9fb8b204574a435c054a99e7611b10c27ea85c88e2eaef6cde02b0bf37c194. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:19Z), 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/QZW9L2238103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb282b7eea563e1c3d5cae73cec62c3ace2cb040b072e4220ec78f4c6de0242b5. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:26:06Z), 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/QZW9L2238105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e167d05259ef407002b804a61d2fc5d57f87da3074d436d2d4a81bd09c57c9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZW9L2238104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a53ad9ec5199d2448fcb7a53ffbd657ad40a2eb81321ed0cc79ab306f3237a3. 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/GBKPL2289740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b49d6f59fbe8bf68a333828dceb3482dbb887a05431495282a81210e38ffa0a. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:07:09Z), 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/BRX4A1584490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5638993f027fc978682a38b6c2769b80852c91100e539e03f16149f27b60ad59. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/MXA3S2501592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7926e346e89d3d48ae9b7049e18841eae66dc5823ce0a2e33e0a947cc295bc7. 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/ZX4P23950023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c5965a3bd9ab7c530b7295ef2ebe9a54af0df5c430c957847a7bd0c68c56cf. 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/CAQOI2300530.