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 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 0xc5d1414d33a7f7530e93470535fdc021685c6db963ed18e532a247f38e4a6f37. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63109b59-02de-48ec-8aac-82429114d327.json and https://artists.proofprofile.net/proofs/artist/63109b59-02de-48ec-8aac-82429114d327.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 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 0x45d174521b04857d94fa9c758875a3df820dbbd9f2879731b11bcb298ccb3d24. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBHGV2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5dd6432e3beafa897b69041f4c88585d4dadf36848feab09ddd77143d5c03b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBHGV2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc911cc8798e0a33ac7be4de9995dbf31e1658cd8697680bf9d510f0f6fc86316. 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/GBHGV2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78f785d616576e872bf8bdfcbd55ab3d7adab6ea3547932b1c92480566d20ee. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBHGV2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1979a589720e2fbf84d0b98b164a070f9536b0f64b2e2cdfb794e3204f15a6a4. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBHGV2400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307bcc70f4fbe735108d78a34cf6379a0756d169e4a79dc55055ac193e6c2fd8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBHGV2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a6fd4800b3d51bcf72d3ea7955f7e966be19fa85613c551f849aba3fb6e79c. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBHGV2400047.
It's the End of the World As We Know It (and I Feel Fine)
It's The End Of The World As We Know It (And I Feel Fine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599572663d190686970f93e44e3b0092495bc0110968bf783b0e85ce1d914b84. 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/GBHGV2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72323929f0e5e89f3475604049f0eff4f43d6ab879d572f0499c7265034cfd9. 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/GBHGV2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f3e933829a5dd1e88e97930fd853d82a411134ce75ca86b1a371213d11e028. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBHGV2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafca3288397851fdcf37db69f07edc41f3c8c373688ddd2165a7fa9b977a1664. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBHGV2300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9a5b6094f5f8903ee4868c1f0194a5af1b4c09204b6fd5d2f2fa3f32f4404f. 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/GBHGV2300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd2a2fa4fe6ad8fd1ab8b774e74218a3ccae75365475f1a98cec8f3798b0481. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBHGV2300095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82092fc1061b12869db64b92e7347c33894065e5a5a13416bf9d050f3fe705bd. 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/GBHGV2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260118d2c272b9a7e1562087d6397b989d5a611255364d6dee8ff91762c3502c. 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/GBHGV2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96669f1618c12c0803a1c1657a659bdfcefd1cb88143f9bbeb7829424db617bb. 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/GBHGV2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b80b49cbcf749c6a2e281c5909b5dd13c9bacdc96a282b78687dd695516730. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GBHGV2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4683270efbf51e34a8a462eb4f6c0b2087941c7c712d3203865cac870ee02d. 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/GBHGV2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4402c0e9bf7ffa37443cfc2f2a47f3305544db22555f3ae31320c903560859f0. 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/GBHGV2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70502366c2c7c4ab029edaa0fbb67d4acced026bd188472a106be979e0596a13. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GBHGV2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb256f5c88e8c8f53245e89b498ced315cadba9a9420f984cd027781683901214. 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/GBHGV2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2748ea3149eac92549cf0d5d09854f28c217b1e150380b0bf65469544162b22. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBHGV2300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0e7f7ee58bf614df2627afb95160ea38560766fedfbab7a80370fdb7f0e87c. 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/GBHGV2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69aa2d5721dad22f79d0e1ec067f95f0ea85e751acaed6d097bd872e0a50a0a. 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/GBHGV2300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eed3020a93c962928b55119da498e070824718258a3e6660ead41d3ac40dd4f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBHGV2300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5f39a3e09b7c990fd0bbcb7934251e5105fc0304ff09c8366207f637c2a77e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBHGV2300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4201131f3f5f7e285cf12f55420799b829a41a7aec940fe0467d8b928442f7cd. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBHGV2300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4791c2a247a586e0e91d8c1cf173ab9a073d021e66eae8d57081e4de0353faee. 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/GBHGV2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5c925d791197985011fd0dbc78ce387f482bebfc35a55f5a2a9645b55cd7dd. 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/GBHGV2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6989f1581df43ac44ce7ab6c7a8e14b2af436ac52ee1d104471c874ee2d59599. 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/GBHGV2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc95dd810b21f824c91293070c0dfc96f3e51a35dba932e9c7ec8cb3ea56d02. 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/GBHGV2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4346398ae83b20484bc51cc25ae2c106be9e4fa96af42f5e40d7cd73a9d828a. 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/GBHGV2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a8a6e6c16414b2c9b367d5d151f5e313fd725a9275fdb769d37ed485362ca2. 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/GBHGV2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea03e84cf7325f4d664f26bb23a24c5e9b7ab8367a8b10ba48a93d59103a665. 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/GBHGV2500008.