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 0xee1176963e959465e5e3d43d8a2dd7bb7c5f4500aff4f6572199baf099ea4a81. 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/72b1f935-65a3-4eb5-86f1-9e9af17c70b9.json and https://artists.proofprofile.net/proofs/artist/72b1f935-65a3-4eb5-86f1-9e9af17c70b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pinpricks of Life (Push The Button) [ABGT566]
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 0x78399c31f68982a7390380d3fd8ef8e62abbda4daee8cb67e880ed31f7ef24ae. 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/GBEWA2400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e62e915a8e79532413f3c2c1acf46276a70a86797bba76b6eaca6c35852aa2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBEWA2203896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d7b6240c56a5ee3245709b69b75076899e582015c3aa653510c850a180abac. 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/NLF711500958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95589d9d6066210d419d5971706344d2d8428b3bc21b68365c4c844b08a1fc6c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD682100408.
Digitally Enhanced Volume Eight, mixed by Farius & Ruben de Ronde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb444d7bcbde1e607d4ff56f0ae0aae921259c4ecf24095510869ec70b18052. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBKQU2396503.
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 0x56404f487af3b31950c29b092cca9a692ad3e4751c147d620ab75ddafb2bb5ac. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/NLD682002590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e3951359e44831f0ddf7a59051d54210372e12f5ad4787cad8897ce38ecec9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBEWA2400644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ea4f009ce9d9b6f278c9df7ce1ff9244ce300f2eac304862b3e424635fc99d. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/GBKQU2413755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21e8a50c00158d89872936d77fdec165c5056903409f90da078f92f800193db. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBKQU2411671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5916fd5cff57982d8e7190a116b8e7a1bdb6272464f78a5ba06ce835c98032fb. Chain 2 (Bitcoin): anchored in block 960305 (2026-07-30T20:14:59Z), 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/GBKQU2400554.
Trance Top 1000 Selection, Vol. 3 (Extended Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200fa920f94688c1f8413c327300bfdc651daa2cc6879a9bcaa8800526eb1bfd. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEW760700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bf42a889d3ab67e0ef672b07656c5db2612bfdcec7819add001fe92809f936. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBEWA1300150.
Armada Lounge, Vol. 7 (The Best Downtempo Songs For Your Listening Pleasure)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfbceb8695d3365c91ed5043d3bd23cf2a4dd817bd4a050af5ab46f9f638a13. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLF711402983.
Anjunabeats presents Vocal Trance 01 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13153d40c9429ee780f7d9df599a0c2546e70f8f8849ec398925c08612fe2085. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBEWA2403673.