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 0x086b996071973492804cbdb4af3c781f579d1579d5aa39485e9b7d03b124b5c6. 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/85f140af-3e75-406d-9a55-cfafdf58307c.json and https://artists.proofprofile.net/proofs/artist/85f140af-3e75-406d-9a55-cfafdf58307c.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 0xe3d4c3a9af3ed36b24418c36a7a11ed8a83474164a2574b9c8f5677cd378f1af. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/AUMEV2435087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537c3c2b7ac1c36e81c5c37b6dca7e99e0ce4dffc5a8aa1ec05dc6ffab225090. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUMEV2435069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aa8cdece1e85ee5db46d6a6a58bd8c9fe4619c84cb7a50d90bb8a11d30347b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AUMEV2435070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517199c4cfe9bbc5c4ccd537dc8e9cfe417dc2171045be3dd12cefa5e0b58f91. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AUMEV2435071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c9dfbeecc4ec1c960d87eafe110037b1235c7f79e32209ecb9e576a68d2c3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:50:21Z), 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/AUMEV2435072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b0b66b5f2b599aca09de84edfa71ece1b39e4b71c1997869e85e97593ca4f6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:00:08Z), 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/AUMEV2435073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae6f55158cf2d36af6a83334728c455f3b0d7410fd6eb066af5c5b5574cfde3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AUMEV2435082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79e722cc18be50be97418b6b18b4a8bab5e900206b9d426815a1474ac97fd78. 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/AUMEV2435083.
Rohan Theme (from The Lord of the Rings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861e1a4f4726e7b83d032ad955b5c88696f96934e71d374b57f77919bb7b6e49. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:37:24Z), 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/AUMEV2435065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e61ca3aca1b5c665295715bdc72fe42e54635a15787fda75a391b8027bd8e73. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUMEV2435066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4287d6c43ce7efacc627a102efa4f6677a830ebd089ce9ca1a970bec9e9fa3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUMEV2435067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7db87bf0ffc296b5149b8e265071a51b1d65945094097c411161cff6b69aaa8. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:54:39Z), 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/AUMEV2435523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a3d324384166ff5e712ca9b9d77c84082218bc270b3302b306c5ec61aff1af. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUMEV2435522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441ce088aaf4aa1eda5898dfcd1d9c25f158205bbb7c3a95466012267a9db820. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/AUMEV2435521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8fc1b87f60afc34e60647ec25b6c34cc49f3cf19bb0e8113349fd4ceb81bdf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUMEV2435520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67aa59163832aed664337d2f50589b68d4c59e8b0f1a4de0b6f98c6158b94de. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:02:57Z), 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/AUMEV2435524.
Force Theme / Binary Sunset (from "Star Wars")
Force Theme / Binary Sunset (from "Star Wars") - lofi beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d38ef58a90dcefd5e1ab8b1ba7aab8b248862d7146de4a856f0d168977d38fa. 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/AUMEV2436086.
Many Meetings (from "The Lord of the Rings")
Many Meetings (from "The Lord of the Rings") - lofi beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375528efb07752615de8b1dc7952e4a037fb96300ed96b9ca92b6d2278a80cfc. 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/AUMEV2436075.
Concerning Hobbits (from "The Lord of the Rings")
Concerning Hobbits (from "The Lord of the Rings") - lofi beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31c75089db4e55584156ae6b0e8c75a403f9c65282e896e0d8c5f04f215bae9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:01:15Z), 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/AUMEV2436076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60933a330f0c9e57b4d7d38d483c159e79ded024383a24c71b150eb0b8097efc. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:20:28Z), 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/AUMEV2436071.
Misty Mountains (from "The Hobbit") - lofi beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b2ee1e09dfb9706acf8412fef494818ff521dfe7cac15e3a99482f6323ca6b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:05:57Z), 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/AUMEV2436074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7522d4936aa25bfd11eda5662793093bd0f57d558df381420ee2c337d25c1303. 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/AUMEV2436072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375528efb07752615de8b1dc7952e4a037fb96300ed96b9ca92b6d2278a80cfc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2436075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31c75089db4e55584156ae6b0e8c75a403f9c65282e896e0d8c5f04f215bae9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:23:47Z), 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/AUMEV2436076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d777b8e5cf89503314a3fb63e32c342e819f4bdebe7bd87572edf1003a3df0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUMEV2435090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60933a330f0c9e57b4d7d38d483c159e79ded024383a24c71b150eb0b8097efc. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:48:10Z), 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/AUMEV2436071.