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 0x4c7bf9446fb6cdecc419272ae25c60cbe04aa7a305a811bb993036d27dff19c0. 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/da067c8e-871c-4def-bc4d-9bddf7fcb037.json and https://artists.proofprofile.net/proofs/artist/da067c8e-871c-4def-bc4d-9bddf7fcb037.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 0xe3c37d59735db5d2d992e3bb6d053c3f00d0fbfb1891db6815cb7e7af6f038b8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES71995549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f3c89bbc1c3343a60311f9dc481895528e9503420897b1fd443e5adffdafe2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ31993423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6951864e9d1ca5466bd3ee183459f274e2226d49c97735de3cf2531b647a84. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:05Z), 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/QZES92187264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3509f71a345b370a3f048021e4e05fdcfa9b6bc7d20c5046ba46deec51f04bb. 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/QZK6Q2296953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa564a8e08c3c36214a67476ff883c64a00518804ede4207dcbc95136a4ee7c85. 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/QZK6Q2296954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339afbebadb1e37cbf293500be93d5080481327388ee5fb5ab4e08e8a72173d1. 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/QZHN72215757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25336481d3da64c48bd65532ed6fbf2ab8e61851cff8d32affa2bd8b6ce00b91. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZES82226442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c3bfee5448d71131b0e480bf7156f7a5cf9964a76fdb757b11d25d92ee33b0. 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/QZK6Q2296956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b77f6743faf347dfec54d7cc9380f7297dd8fc6da9dc601f2b53cd5982f85ae. 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/QZK6Q2296957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af7c4b9cd556251d2a6f509f2c81eb32775b276e1d1b9fa452fb38c2afe0fe4. 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/QZK6Q2296959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1f36f3b54c6183392805391f5cc1b0a488dee33af55cbb052653e52a3c9689. 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/QZK6Q2296961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea162d89726ef10dea1e33a2c9ba9e8f709d436849d572af0ab718c3cd46362. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZK6Q2296955.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be5f2faa3df2fdf96b39efae01e8620339e47aa1b4d7e3d14497bdb71076db. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZHN42226995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66d86a99af9601df1f47b0d52d892b0d83a51fabfaa44cc27d95a451e512fc. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZK6Q2296958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7686493d3e526d00022ca788231c1a1313e11c20442376b57bbff1ce4a1e6424. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZK6Q2296960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1ae945f8787d9e0fa26de125d1d0a2209eec5d9f3737d4c8091bad16178094. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTAT2212709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f347b5009a78e7e875b6bb60543e443d6d0e29a74f7630e3ef063475fc04ec1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN52307068.
Buy You a Drank (Shawty Snappin') [Banana Flip]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf220c8294561781448436778f8ee7a32138c1255a731c2ab3b025d8134c5b6be. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:07Z), 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/QZPLR2482568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287507859eccfd46665e23075ca7150dca54ebb907d6fe375241023dd65c548a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTB52482536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef60bde3548970ccfe483cbd7484dcc3c698e6e8357ecc3d37ff4abe93d6966. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWFE2446689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bcaa7087a76517b6ac0c9f287c5d26d254dade5c7caed77a137793219c9716. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFL2489329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeee9d557c4cd1fdc48de8f2a153ece074f9cb663ae36f3b6a2aafa99a833fa3. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZS7J2407390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21377e4c9ae1076978501cf380b3163e4444a6ea83e2bb056c39bf5c8ed92cf. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZWFT2538522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac056b04aca0a4894784dc21de0e11a7db8f904c926c9dac43df4ef6d33df61. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:41:07Z), 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/QZWFT2538523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030fd5adb8dcc7968c29c18825fe3a0935287a261d00f60156e052e359dac459. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFT2538524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907a26945b976108870cd60e69ea331988db2207d48ffc3a9f7d60768a5b9688. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZWFT2538525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1771ac512de45b2d416f800948aba84a513c93a2d8a574a4391b284b1bb52d. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFT2538526.
Buy U a Drank (Banana Flip) [Shawty Snappin']
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda63b03041ead0effac01e476d87175014f3b2157905a6964a3209acb40bd9d7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFT2538528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5141d44c97e295c7161b5604a2a4d7c2af96dfcd7decca4cad609ed9201e4e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFT2538529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8308f635b360c852b0f64d09cd02787b8c9042737101edccac46f674aa7282b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZWFT2538530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc907a0967cc6f1b44fc5446ccdf3c106372807a55bbd460eac1079d9229d922d. 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/GBUM92400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd98affa51ab811069313842e9172e89dd277c50b2b47a11db575493ff43eab. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/CA6D22000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd98affa51ab811069313842e9172e89dd277c50b2b47a11db575493ff43eab. 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/CA6D22000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc8e87c406985dac91d2280072476516c5cd67a852d75cef7f98c1fc302e3dc. 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/QZ4JJ1952022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc907a0967cc6f1b44fc5446ccdf3c106372807a55bbd460eac1079d9229d922d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBUM92400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575e37979f4f75e3f0297435758e28ef4ed137fe6875ecafeaff3eaded451bb0. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USDM31916907.