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 0x38732ae56b5c8241b3a840572fee2217bef3a64d62219ec6b609f4dbcccad79d. 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/d888115d-80ef-42e4-827c-5d75437b93c2.json and https://artists.proofprofile.net/proofs/artist/d888115d-80ef-42e4-827c-5d75437b93c2.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 0x56736a8b1b3681ea3cac19d3cdced5449c4bd25322f14f829d981a5d530eadc8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZ9FG1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1978f4b100714673bcf1002cbd37e78cae877405c7f56216f2e3fc4bd6364372. 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/QZ9FG1800003.
One (feat. Calvin Nowell, Jeremy Camp, Debi Selby, & Ileia Sharaé)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7edd71b37d1f5c988542d1dac5d87c4a95134a626dbef8a1f1796103cc718ab. 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/QZ9FG1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ea924bf73079755a7499d66f1fbf0810edd3bae9fed8b79d6c2abed9e41e81. 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/QZ9FG1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9efb87c0a31cb629635e1e5ca035ec04553f388a01805916f117addc5aa30b. 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/US25L1400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f71457f37c53c8a38f35330d7ff03eb58d248cc42e9937104c496866caeeed5. 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/US25L0600921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4737e8fb0773baa8eadcc447c4f5b0ef2714d438d060d03c958e5154d574bfc. 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/US25L2200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d3bbc4ad0a80e202d0c781b3e4d8b626294e805b80be28ea4a67d94afd9423. 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/US25L2300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966d6354ec4a0b53dee2f6291b09b46c388bcb08d711b97f63e1a10921765dac. 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/US25L2400261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0b8c069fcffc37fcd1ad7ff10cc04324a1cd9250c858b296543cce66a0f248. 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/US25L2400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c3639418f9f60b1350c177c95e8cd1aa438dd396124c73a719f7529c3c0ec1. 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/US25L2400263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dcdb6050547cfa1a78895c2bb354b30ac9fc71d141dc89fb7512830fb85fb7. 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/US25L2400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3856bc08b5a4ef7846ebf72c5b857185661ce983e944a6b131e45c3ad716eb. 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/US25L2400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724e225810e5873ae464dafadfa7b2dee1c93723979116c30dca86fbd1a7d843. 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/US25L2400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd7370796edacc9d24ab6de0ebc96d080de8f7e90646b845990b46fccfba407. 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/US25L2400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22429dfa99e12fa16897393f254b8a90d803ea2794d897e044ff2f624ba05d18. 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/US25L2400267.
The Beauty Of The Heart Of Christ - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d689c804211c68a052134e040ecbc290d914d99882445b867c1347dd71c169. 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/US25L2400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024d8c9aa21202c04b12f6e322ba380bac9ea9eba538dcee7bdd05e4a1e26b5f. 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/US25L2400269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bd3e2e44e21c12452884b7e9593daf7889b75c323d09857c8c7ef5452b8f64. 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/US25L2400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebebc1129c133295354c5daff0fcc6be574c48232d4caa5e1c9c3d9fea3a0572. 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/US25L2400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bab8065d7adfb6f0af7cd069a4a89d0a5d5c1b8f470d7776627ced35bb82589. 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/US25L2400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f71457f37c53c8a38f35330d7ff03eb58d248cc42e9937104c496866caeeed5. 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/US25L0600921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d3bbc4ad0a80e202d0c781b3e4d8b626294e805b80be28ea4a67d94afd9423. 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/US25L2300393.