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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945b3ff90bab84b82038a87784e0aa0e7f37d4b91a2150a9b82f3a7cc8fed705. 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/afc8b2c7-5291-4165-a88d-b5dbc5363db9.json and https://artists.proofprofile.net/proofs/artist/afc8b2c7-5291-4165-a88d-b5dbc5363db9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tactical Funky House Session, Vol. 2 (Mixed by Jens Lissat)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e53ba446149d4c4ef24d9da77312aa008b8b3f918635d493365e84b9d82878. 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/DEPR31800073.
Brothers on Acid & Sisters in Love - Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd903f6348e6d4e661267764f08dc15fcfa83f42d093174eae5afc91d877b3a0a. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/DEPR31900312.
Brothers on Acid & Sisters in Love - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b873153f1f1f6659caaa5e16d497ba75adf2c1db2fd6f9104775c08f7a42156. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEPR31900311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133e0a49b5f6fc510ac7ba4a057b2da44409bcafdf781b9bbe6f1244afdfed19. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEPI82211090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a260acd0037614db1a3f31506c23422d5ae2ead642f9dec673fea5377f727d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEP999500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf904a4ccb3bf05bfbc943e6d617eca0b839685868f74a2450a7d95d3ebf632. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:07:59Z), 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/BEZ452400908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b401c8d6e39c6c85aef4463525eb700eae81cc0c1083509a0b873fd16da252. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/DEPI82446077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3b977462c542eb486b635bb85dfa79d51e76ae0e41b48c803c5e699cb88137. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEPI82446659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637ecb5daa3a12a838de1d04d80324fce076e1a80403f60d96bc6719fe645956. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DEPI82500454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad75db20c59a2fae81b31de56ff95950f9d2a32d5ffee1d4a62de6eac28fdce0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEPI82503574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3ff75072588916d5f335872f8bf9930b242064fdec2ba449df5f191b8a7b58. 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/DEPI82508509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1108865726306385977e0b1957f0818b893a3286f8fb659c44a0f60d08700315. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEPI82530372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42204293ba3f4eb8c45a0b6bc6cca2b4b7cadaf2a2a9e68103e690e6cab158a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82572375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807286b7fced78b682534f8b6dd08977cd42b3f747816054917b4d70a46f5c2b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DE1QW2504662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7571e79d87881c5b63b9d0bfca66152a323a5f237925482db2681f156cfa89c8. 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/DEA312401211.