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 0x479618309bd4de00072a10726bbf8073aabdd6cba240dc8241b39b6e53752af9. 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/3f220572-aaf9-4e09-99c1-73741c2d7bfb.json and https://artists.proofprofile.net/proofs/artist/3f220572-aaf9-4e09-99c1-73741c2d7bfb.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 0xa443e3a7238e38557f996a38301d07a9fb742a892adc575a6a376f2f0486c79a. 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/USWFE2291045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943c7153748be7b888078b7072a641079454cb2651c1a4df93f31ac544cb5e4d. 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/USWFE2391116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb481d884e2544a2b46cb9198946f77bc32cd63cdefaa7723737fdc4cd51d86. 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/USWFE2391117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b25516c1ca83716923281ee9d2814b5d10d6972e84fa183066979ea34899cb. 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/US25L2200343.
Touch of Heaven / Alabaster Heart (Live)
Touch of Heaven / Alabaster Heart - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e7307e94a9d281f5476accfe5993ee0f8ffd12b7a056c2c4f35e544954f0e9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USWFE2190837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cc22d53806aac1940bb20433479b79438f8455c916f069c39d9c49b84d5fd1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZVR22300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa443e3a7238e38557f996a38301d07a9fb742a892adc575a6a376f2f0486c79a. 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/USWFE2291045.
When You Walk Into The Room (Spontaneous) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bea161bef63ee8feefee29bb0b16418c7c1c688521c2cf0c16ff5a12f21d38. 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/USWFE2491132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b541d242dca37afc770b80acfada4f3847d7dd5789b3a17573a59360cbfdd1. 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/USWFE2491133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c7a38d7978b505fe9636426ef0ac3645d46ee5267faf61c41cd1c22b6fc6b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWFE2291026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d082d98833f852d057fc7b2832c7fb69c383d2edd92e2251d94d62087293a8. 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/USWFE2190921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b25516c1ca83716923281ee9d2814b5d10d6972e84fa183066979ea34899cb. 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/US25L2200343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44fe877ffd3d22f47c870debe2d50ae4b2076e87449d697312825280ede1fe2. 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/USWFE2190890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b76489bb811e9c38b853d779e4421b662ac54c3e1483e7c8565008ff2bf39a7. 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/USWFE2491207.