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 0xdea191c9d8d5e86c3d995f14b8fa129baf19941dc1008b04db5494949f236884. 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/2fcf6903-3dc4-451e-9cbc-58278a7cae30.json and https://artists.proofprofile.net/proofs/artist/2fcf6903-3dc4-451e-9cbc-58278a7cae30.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 0x92b6f8b33c20901e925d90f903dae382f7729fd17b7f1d9d0651374496d89f04. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4WT2300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb23a0588e3f5b6a1ae96cfea348ab9ea8a52cc8850898ae3b2d5d1fe2a1204b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NL4WT2300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f17910ef9ea593506cc2e4c07437ee841dce09485e3b8a7dc01e5c493ab491e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NL4WT2300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047e529202f61dc62da166727193d09f6826af4f0195d200ceb227886d33acae. 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/NL4WT2300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3536269ab9784799ecc058870af586d5628b55bf76511819782e197a7a84cd. 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/NL4WT2300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a4423b9c7fd545ccdbb5f35d2162d019c72c0b78cbef8fa6ea8591e1950093. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4WT2300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee923c7658a8393ccb2a94484ee68c3deda19daa4b1c088ce9f0b70fc6dd253. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4WT2300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ac0d32c8145f567a72f39cf3e6e02ef38f59480bf4e4587c62f761a2768a93. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL4WT2300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc9db5753e160326c2d3f104a5e851d18b8a054704d9ff0023821dfbfca11b9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4WT2300345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc540bafd746f7c5ff30cee7a3d7d1204002e652b5d8e31e0797a664c0e542473. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NL4WT2300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f70140e89fa6202949a1444133b3dfc597239c525c8ccb47578435e7a14925b. 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/NL4WT2300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48924550a294b3cb7500fbb7fd87f35116bece91ea1771741d6cf7278d8f0df4. 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/NL4WT2300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce8fbd86bfbd3dfca968d253365af3bd9a937d20599099d7a6b55a653755f0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4WT2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d539947d208b44b0ed1ba819ddbfd524b81e273b5075f54184400d1be04bd85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4WT2300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6e9010078459b33ea10c1d46b769b0324114e65c3a1e3fefa3f15b9c967f8c. 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/NL4WT2300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9dc665ea9e8ffc600fe37dba617553194f26652a95acf8d622c0164b83dc6d. 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/NL4WT2400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8a2b67891ee93115537e8978cc43046e5b1defc3045ca761de0bfcf89466ee. 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/NL4WT2400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6eaca722f3e902eef2e49b5707229d0171986e5397869a6e24e37265da4cd6. 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/NL4WT2400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9cee9dd64264d9a2d51fb5481bb77e6e1f42ba20b37dab62eeb120e1654d2. 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/NL4WT2400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19eb0bed81315cdc66d7c46650af9630d5ccb460724e8393b279a0db16e579d. 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/NL4WT2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc4b7283bf8c17f78a15393c6d8c25afaf663244155f634f44489253c79716f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL4WT2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee923c7658a8393ccb2a94484ee68c3deda19daa4b1c088ce9f0b70fc6dd253. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NL4WT2300330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f174cdebf8387b6bac34d7e6f4db8b16126593b8924e299a7ec67853b7a7ad. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM7282335126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cb7b02652fe268b830d0940748031a5c1cf7143db7f4fe3c8544ae6d8d5046. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6P42338405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5c76f545ea095bf0b0590184cbf6a14c7a3d87f9c68328811da2af66694010. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QM6P42314221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92183d8f1a4e3750e30278123d244df192d8a5d36899ca97bc5832cacea6cc74. 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/NL4WT2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b4f6bc11f3541bb609f89aebde18ae90c373aa45647456c31a3aba18389ca6. 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/NL4WT2200137.
Andante Piano presents: Quietude (Volume One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64e2e67e25ce2f25434379b52b14742eb6c5e30ae085ba22ef639f902f79d6d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4WT2200138.