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 0x9555cff82ea0777df6ff9ed6c2dfb3542b0990a9d167c5edefd3427fc9e637e8. 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/eea2919e-ea1e-4ae2-8507-5befc03f16b6.json and https://artists.proofprofile.net/proofs/artist/eea2919e-ea1e-4ae2-8507-5befc03f16b6.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 0xf256693871e5cd3cee5ec1d4380cac0e1696c2fd89d7db6ba805f267fb26e528. 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/GBVTB1513001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894ed9cda5b07817bf62fd887a3fc30f0824e146c8c8460b63805d2bec30b25b. 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/GBVTB1513002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb6da4151d4b07d0b3f68e1b48a113b7a7c457a7766651e08bc2636accafa29. 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/GBVTB1513003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fc66a70510104025c2ce8008b7cdfc1751c7db4940a42490e1cd8b75293e18. 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/GBVTB1513004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b0177cc7c6f278458643f3cf5b38f178b75114e405a4571b01fe2998e90f9f. 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/GBVTB1513005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa837edaabb325fefe2122443173a6eb97988497a1ac65ca06da1dfb64d84a8. 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/GBVTB1513006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a29fe80d36af2be7f42db8e3fcd98aa17008e0ce5f52f88d41b2a38882335c. 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/GBVTB1513007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70e34fe402f9d3006f1ce00648b82fe43c391130a7659b7296b3c3d1e371af6. 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/GBVTB1513008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4481da21faff02c2e8233836731fecb2abc905642590ca33b8fb257a76bbc. 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/GBVTB1513009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64fc1bd07f3d03d673475d55aa598084eb121850ef1e00621f9a4f061c109f7. 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/GBVTB1513010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbbff02047a3b08f81ad1fb6a1ce84abd1f24ad55e689fd8ffdf96738cd8c81. 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/GBVTB1513011.
When the World Was One (Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072051795083077adbab7dddede2d9807ce564da0bf3a0e721a0bcb8c58b100b. 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/GBVTB1410001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b694ca0253866b933ffbd07fafded7b3fc7a3c12f7f46c03358e2a5c836228. 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/GBVTB1410002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8428c44401f05830ba328f67e991e7a0938255acf32a165de184a182dd01f2c0. 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/GBVTB1410003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0a4a89127c3b5d537fca860f5164708514731f05f99d79a74947944c17c090. 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/GBVTB1410004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10db5871732e632a166ecd708a39fb7c43b163ccc326e6cc4c1b672c740a98e7. 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/GBVTB1410005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5532c97e63caba81839c49f451b6c9e9e83d96927946652c6808009a4f1986f. 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/GBVTB1410006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3cdf1ab6dea6b9dfc81e1e0cd214ae32f005ea5051e6d984ba49fef8270700. 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/GBVTB1410007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5718e3303d7b19f24c3133f78658e43fbc6f12538d00dd4b24bf58ae844afe22. 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/GBVTB1410008.
Tribute to Alice Coltrane (Alternate Take) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf428b9269b7d1a883864ba7234b9e6d4e62e92021c9bd5ea49eb622984ae2698. 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/GBVTB1410009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f04d258029f592f1a1a8a7b9216f6e6756c916637321fc827618a8eb20055f8. 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/GBVTB1812021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c7eba360cb5c28c23f29d03d831a838d58435ea33932254e54157105b2d56c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBVTB1812022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5751d91b79443eda82e81f3184788e66e8913561614722082ef0eb9611b2a1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBVTB1812023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faf5fd57f863a09c4d4cb2bcbfc87dc9f0a5a9ac29efa83bf6c17b196b412c3. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBVTB1812024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489ccf6911d3b5de55881cfecfdfacaa5793c42197ec7133dc93ec039bf60947. 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/GBVTB1512001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b406ac96c23f32de8e0bf7b7377d195074221f2532b3410973a689353c05dd. 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/GBVTB1512002.