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 0x6e840f3ac72ccb2c43e56bbf1bf861de3f9ad00d089d811c94a2ac772e19c0f1. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bd43d18-3812-4b96-b506-5884ac104695.json and https://artists.proofprofile.net/proofs/artist/1bd43d18-3812-4b96-b506-5884ac104695.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 0x8fcf4adf55548c67e8bcf001c6da4c27e6d765f3f89f912496ebde64fb688a8d. 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/NLQ8D2101988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071ed669e50000b376a7d58694c658432b252f6d91be7f5c36955da39d22a8f5. 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/NLQ8D2101668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b524887a4a6db20f92db745329c76a0aedee656aaa10fa51cd82f6aedfeb6f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLQ8D2102245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb2b5a8c6ae3729532cccb09366d89aff9886ea3c472bf62d1c838a70e5c768. 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/NLQ8D2102249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50d408fb770110f1f066a045b367de5248f08b0d5a27a11e79a59a745176452. 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/NLQ8D2102255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956d76d0ca5433e5d8082363f9ac000bb06a4c41b5fc41775704b6757b643f37. 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/NLQ8D2102264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a2afb3b152b072e3b79f566a2307cbf6127f031bab120e315d5aababa6811b. 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/NLQ8D2102266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d51860e9cad35b797e6cae988847308990b0acacbf175520f0a1ccc0bf33992. 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/NLQ8D2102267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a8f24fe6fc5840ea551d0f46d80bc6e9640ae3863da3684abcee0d36289d83. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLQ8D2102270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d1c3d7a071fef263d66d98eb029fc7e63693829a647aceb21bb9ba6fdbc8e5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NLQ8D2102272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ea2ee4c2570210541098daad7003ae043f88952115d558b1090c9e30bb364b. 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/NLQ8D2102274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eb6036b5d7729a225c9a205e9eb047c1131d9bce42c93586dba4a857db56bd. 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/NLQ8D2102276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275918c58c9a1ff8c5b32e09442a88e19e49cb9d014118aa969471a6b71e4744. 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/NLQ8D2102277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03b2d2819bcf93bef3f3de96f5870353b9ddb766cb1a16253eb10fab7184693. 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/FR9W12432126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cba6b041307ffe51eb2450d9d283884e271b4097fb9a263f8ab697c96f107e. 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/QZTRX2377043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66b8ba1a8a22ae5026f86c82c5f2d7a8e7d4759f5abbaa968994cd713f416e3. 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/NLZ542200256.
Dreamer (Vinny Vibe & LODATO Extended VIP Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7777fecba29648107fdb41487eef359167971e99307399c2bc374ca4e97aa7f. 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/QM42K2150677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61a14ec7fecc770fad2dd22b7bf63f7b72864bc7eff730ce4589af4d8f0ba82. 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/GBWUL1910056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19e5c9c56743d6bcedf04d2af67f95e7c2c3bf4c9b6d4907c994c99e46970c4. 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/USLZJ1938223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112bad1504a2b36b26ba6b57dde19ed9a2c330657adf507ef0b6e93d2637d0d3. 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/GBWUL1812079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35948049db4caaf1685a9c1ce4409136f06d7fe40cc1c30a77f7c9d2b68ab4c9. 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/NLQ8D2101926.