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 0x31065a248fc479adf9111665ce0c005555be72c1e278d9980901daf98b7713a3. 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/63e6a8f3-6b18-4815-b0b2-582eec26acba.json and https://artists.proofprofile.net/proofs/artist/63e6a8f3-6b18-4815-b0b2-582eec26acba.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 0x56a74c50d71a6c79cd1f4dc4994e410701f416f97c6f1d1be067a9dea1e16108. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/US83Z2320267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa1f9bf7147621f3e0df2d3b3d8e06b85bc5c8ca46b19b63dbdf9e399836ca. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX4R52330282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d89560f3e4bbc75fdca72ea9109519c63f98f4c34495ff758365d5d29fd5f82. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:24:23Z), 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/US38Y2407477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0943bfec47e7fc3052a1b40ecec7633eaea8c35ecd451a84544b5edd68d7be. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/US83Z2473016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115261450e8b636d9a529ad7c95c19079656b7a78547073ad987cc42b655b0f9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US38Y2413063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53116ccd8978f1e6688f2757682ec44fdeddef45e6b1dfb1bcee4d226aff3985. 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/IT2VK2400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad1ff7930cad8d9692e294baf85ab7a414eb0699bc1327646e401a318c9ac37. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US83Z2421821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932361ca6dfe41bf50a6416ea7ed1791d9de32b724e78adfd911fbc715a35f59. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:10:22Z), 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/US83Z2505023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ec880f7ecef362e63203b1f5780b6452e754cd4eb2927969c3e7a99aa372c6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US83Z2524039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8429d32834a2e91e88bcdb4faef5f95e27a70b3c13ad8f4d11de253160b6951. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AEA3C2500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf249d4085cba2548431945f0379ba8c7f697c94ac3ab4d9e31cca7fc914b5c9d. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/US83Z2523818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf79b2c498a321fd83b8cb115cabe8c56aac60b57ca4f86136f22e1d916c76e4. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/US83Z2534611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25481644a6611ec17263f3954bda7eb1a462b86663f263c33d5908efac3e5060. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FXR592402814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0644fae163cbecc2ff8bd8877484d0ec966123f33877d11e3440e8b40c7105b. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:35Z), 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/US83Z2542221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaac5e5f7522a498ad6a21789aea47a091fc2d2589d808158f2f7c283fd22136. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/US83Z2546762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85db2eadb0e1168357ac9f67ba67f8e8423d7bd25a5c1d819cc666945430a4. 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/IT2VK2400018.
Buddha Bar Summer Vibes (by Ravin & Charles Schillings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45439495ff3d6fb45388a64a338873365a57092f6953bb44184b36421b1c40f7. 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/DEZN82123757.