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 0x76aaf2ba9712de97efe7f934f84b8fbf05ab346681ca9555230d690ffdb1b0e7. 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/4ebdb982-dc47-468e-9ea7-67224aff0e85.json and https://artists.proofprofile.net/proofs/artist/4ebdb982-dc47-468e-9ea7-67224aff0e85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jetset hilife (feat. Paperi T & Tuuttimörkö)
Luotolle pt. II (feat. Música José & Haaskamayne)
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 0xa30815da925113a6f1e3dbf0e2c2feb1a53aa2f0a9d8945abd00fbd58d58a3a7. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FIMRR1500024.
Khyä! (feat. Persaukinen ystäväsi Hätis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676882d57e827a410545f61508f528f72ac2c6e1268e7414bd8b533aaf9096f8. 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/FIMRR1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb54b76db4e71368ab4ab9b88d68bea5840b9b092b802a243c5871d5713227e. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FIMRR1500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f685feea9a32998000b972e3c45e00ffc993ac383533005bd280b7e9162bb. 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/FIMRR1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5676e8e5fdf298f832c0358fedeb9355759a2ae9642fc166542218572f618495. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FIMRR1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9eaf00a1b3c093838e6312d81238e2254039f16533d64c3d51953de8954a92. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FIS201700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c871833bbeafd96500f538749e6a15f2c6fe539d73c82e146137ff3297dd0f3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FIS201700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5580dccb6dc21f32ac631d5d9724c43676f9e0f6858c3f9c291e095b784dae9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FIS201700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18962290f06b2c3cf5132b30489b770830002f92d396a1d35a19ae06e14faeae. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FIS201700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c70d20dccd3c1a69fab409756c0da83ed59d486a0e048ba620974e00136a37. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/FIS201700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d9ec8d84dc54012c5a2a94e8a08dde477c33ed7a743d3002e65588b89f2612. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FIS201700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1127b2a1bce1f6a12933bb787a596d2e20f8b750c4595af86c0077cc9783068. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FIS201700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d29f5bbf5ac0795038d909a8f0e092f361726e905af2aac2257c9fabb8dc93a. 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/FIS201800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f99428fccbb841a2db20e667e23ec606809b14ff12d8cc3a3749fb212aaf429. 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/FIS202400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0c7292a3143daac48ce2f083120da81dd1c5bcb48028bfbb87f31696851412. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FI3EF1700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631c87ca22e78b2a613976fd1ba3f935a9a7ffcd39a0f123f9c9d7f17c6271cf. 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/FIUM72500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d29f5bbf5ac0795038d909a8f0e092f361726e905af2aac2257c9fabb8dc93a. 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/FIS201800004.