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 0x86659cad063c7af023008c22633a4ed911ca0001c9159638d54a781d97169735. 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/1cf5b9d6-25a3-4321-beec-99947e6ccaa2.json and https://artists.proofprofile.net/proofs/artist/1cf5b9d6-25a3-4321-beec-99947e6ccaa2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soothing Notes: Chill Music for Personal Retreats
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 0xd980eb5ebdeb6299637871810f398d4b9a7a421f63b78e88c345b6007d206023. 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/QZWDD2462618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8e28b6d181261e39c4054d465514eb4660278f1ab0e6332fa7c2350651652d. 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/QZWDD2462627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b34e91b955682094efdaa9784cd503bbbc248980338c5a31545a461f213b17. 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/QZWDD2462689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51dd5dd1f859c7c8ef8eee8eb8e77474ae3c5d91d7196e4b8f7f07d443a3dc15. 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/QZTRX2432658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd226905f964db8079a1f71ecdd736b91a61a52d0fa8b643a6876ec21945bcf. 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/QZTRX2432697.
Rain's Rhythmic Symphony: Nature's Wet Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f7e98c046714f28701d4ea0539a5c5ed3ade47481ea8a1625350b0d3bcebeb. 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/SE5IB1900807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32df8f542930965f1286ad954e4b0a6e24164bf1ed2aed94217d5c288965efee. 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/SE5IB1900463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54edc87e84125f76fc6728730848eed710a2073ec11b912390411c6b35eb44ea. 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/SE5IB1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6c73430af21af979b7bdf96c5ceb2bf0af14c4d238fd7c65cacc69a4325eaa. 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/SE5IB1702319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229969b5e30ad652505ecd19734e77b7f4b77a94f59ef762d8f76f281ab10996. 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/SE5IB2308222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71879dcc88a408542b9da7292d0678abc2d0322a0b7007583cc0bbf034159a1f. 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/SE5IB1702278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f07dc228a9024965e0ad75d3f2ac25c413381a0fd698143f9a636641ead25. 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/SE5IB2000986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8b45af8df4aa1673e92e1a10938cb7cdd45bd69383cd104ccc50c59e773636. 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/SE5IB1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefbf92007e5b2f0881ce16095e2a43716e7c1b56fc764e55e9e18e12204ad95. 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/SE5IB1901471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dfaedc8d25efeb52c6676c06cf756c4778e9a7f2238522a200142c637f9e7b. 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/SE5IB2308219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a1a32689b92cab2ac02507c06d89f49ad92c34688e84685aeb67284a08c8c1. 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/SE5IB1901460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c77e639e489ec0426637fb456767603a540067fb9b0082a1ba079b1ac9a0100. 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/SE5IB2308225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a0cdfd84342b4e16930f0ed17f0709443d75ecc162c2e7736bb21d1ee31c1f. 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/SE5IB1901464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd4e0ea70322f63d93586707a1cbf0328b4d9521260d66427b311eced772f2b. 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/SE5IB2301994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54edc87e84125f76fc6728730848eed710a2073ec11b912390411c6b35eb44ea. 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/SE5IB1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a39cf8acfcb48319140ed1a23412f4d969ad2518484e1a56b423f0d9285aed. 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/SE5IB1702274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a5ae63488f70d02c15c253d4000fc619b046aa973c1cd8e590cc4f8477db3. 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/SE5IB1702268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982e3f5c07f5de4faec66b497edd37104d4a44147db8e74ca4ea047914a0cd49. 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/SE5IB1901461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93c5247fe546b75f6902a5e74008c7802c127825dcc9eee813f3aafb42d5174. 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/SE5IB1702350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd604dcce26543bc183c007c24b01d4b12425abcbbe320e7d71a333044e8f7fcd. 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/SE5IB2000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca28aa90b9219b497c51163a2e09b24b925aedcc975cfa3878bd3e65651609e3. 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/SE5IB1702262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0cab59fd9c57da6d04f68c707ff710d4a407cea5ceefe10032984ba62e435c. 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/SE5IB2000286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b6419a140d786c9bc47bd29e4ecfb2366ab1e7bb69de2ee838f7990a93930f. 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/SE5IB1702272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54c977e8e2ca291ba1ac085c9a1802841fe9d2073a2211b8048ae52b5ebebda. 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/SE5IB1702263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d14cdf4bac3e84d11e9a70571358cc96642b78d8c97a35c569e7058139f043. 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/SE5IB1702269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa602bb2dc259326f520d91cc49ccdc6888ed15b13a9372cce692e563b645a7c1. 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/SE5IB1702277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c598de0653826a252f0d2aeb4594df9d6158f73999ebff2568336d910edcf. 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/SE5IB2002225.