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 0x696e11a3b23c679e1c29cd8e04476f38a7e2c4cb9b10e7cc89171b7bde5338e7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e24376f7-1f9f-47f7-b69f-24a933d9d74e.json and https://artists.proofprofile.net/proofs/artist/e24376f7-1f9f-47f7-b69f-24a933d9d74e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa2c916527cbbcc1a9caf92b78eef08cd057c9895f774bff48f390b6159b7d7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:18:01Z), 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/GB72R1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4abd5b12c0351a129109357af0f523030745b75d4ae401b7fa3517e74659df. 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/GB72R1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba93f45250d22d24a94fa638f39a4dd80020aca40f46abde6ee13c0ae9410d31. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/GB72R1900038.
The Path of the Wind (Guitar Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12983e3e817448f2f2d40a3eebbdc82f3e1f268b37a19f3412955e839bccdce. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GB72R2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76202ee1936b1bf3586f3f9adc458393d0029856b12ed30a3353bb1fe794e71d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB72R2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84966b13f0d803f9f95136941ea4c2f32acf7657f38f17694d7ad359c4058afb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB72R2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f45855a4079b84307b67312d92279fae067618d35b647d5accd1655b6114b82. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GB72R2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a1fd57c153e7a34b1a3d83720d5bc049554f191bc1a8e67735293fa3535996. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GB72R2100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10ee4606891c29f2633b36f49d06865c3b532e0ae47798d85174c38b0c222e0. 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/GB72R2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc36e789656e0d0dc95827729cf1ea2e7dbe744470cac3609f812f94523cf7c5. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:51Z), 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/QZPJ32162458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499d5403a549855880d4a989e48b4f446764e3303c43ed47f4c9f04218475b53. 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/GB72R2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36593ed63d1e505770b220998c23e6604ce52e94017fdfb9e9d0cea0069cfd0. 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/AUMEV2281922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f8f4dbeaed3c854ee5984860cb471a3b29cd1c75ccc1be0aa70ca44c3ff18c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GB72R2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf898b57b001aedb724e2b95f7ce0b06c201fd653f13bb4df50eee6bcc02c8619. 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/GB72R2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436181c5a871c1d2f20ec6d1959647bf2da1e7149e426a50573e28eda1a5ca35. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:18:59Z), 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/GB72R2300037.
I Saw Three Ships (Acoustic Guitar Instrumental)
In My Life (Acoustic Guitar Instrumental)
In My Life - Acoustic Guitar Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a9f9721823ea6d7d7d52aba5ad08568c39c4bd062ca4610dfc5a50df4f8e9b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:39:13Z), 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/QZPJ32364497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7271f4c39d71e749751483a345b313706bf2046c70e182360510f49a954ddb4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GB72R2400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e5b4c4f21636048a72b8d4bb47eb40cc13c2e08a9aac9bfe7c6b076f44ade7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GB72R2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a4425bd402d0783ae9fee412c3e37563433fca00e042e2e65cd0503d255667. 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/QM24S1927066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2fdff09eac05b67cdda0213ac73946e4fd2beacc5b4ce29c5744271d8f56b2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUGBT2307690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae881b970450816252c4dec390ddc424d89dd5220e47d8feca57b590e03acffc. 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/AUMEV2314375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8b8a20745d52099d231c1901747da069ca951e82459050ed15d33bec8d3518. 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/AUMEV2226862.