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 0x2318b007fc57d1cbc79f5e6b2833cd9baebeb03b80cec882b7aad7135153e92c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/684f40c0-f494-4eea-9203-2ff053373d25.json and https://artists.proofprofile.net/proofs/artist/684f40c0-f494-4eea-9203-2ff053373d25.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 0x296b9a2b81bad66fd19c286df29059f336fbcf06996b5fa7f7bc5ebdb0428937. 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/QMF922150143.
Psalm 139 (No Escaping Your Love) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0117dc19a226e02803249ced789c126000350f2a4c7ea9f6cc82cd95bf0557. 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/QMF922150091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb70078218a5587743eaf39d2455878bf3c4aaae065f8a56ba1a5e35658639. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/QMF922150066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550661ff5f96bbf5ab11f5cf4784c2dad2000125467c2612c3f1ac52005b9319. 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/QMF922150094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3a0c9189e359226d66d287c8a828a387af2792783b059b59aad2e0bc7668ba. 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/QMF922150095.
When I Speak Your Name/Still On The Throne - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ac85390fb6146cc2905bb689a4284248a7b58f4f214a538ea0b55c9276bdd. 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/QMF922150098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093d53ed8dc0db26e33ff871a9c956f9c6656b59aafef2fa992300cbd1c78c12. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMF922150099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc494dd73999499225b9c714188cb9a969def5fb02d94d29162a418cc883e03. 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/QMF922150180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb247372194f558919bbe30a641a617639bd3b512e4eb8e838cdff156e2bcdba8. 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/QMF922150181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df2a0a77e7a52e16241123d041229f97a48a7033c9446127393c32eed98a85d. 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/QMF922150182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f7a05e91da2d6bce77c32a531453788a4463909001e583d38c8a3c05c32d2. 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/QMF922150183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2212b05bb081d4e74b2c2db05e59454f5e62c8ccc8f0e43601ec901cf472ab. 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/QMF922150185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac00439131e7ff33827d29b63b55f041b0caa850369d4993ea3d6679d8ef99. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCADJ1796735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093d53ed8dc0db26e33ff871a9c956f9c6656b59aafef2fa992300cbd1c78c12. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMF922150099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb70078218a5587743eaf39d2455878bf3c4aaae065f8a56ba1a5e35658639. 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/QMF922150066.
Almighty God (feat. Daniel Mow & Sam Mow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad8df12d27e6558919339c253e7e48b43583321ba8529d949efaa101c19eaab. 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/USHM81451888.