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 0x40fd6008bbd6539186ce4da8ac91e0c7c8522c617a6155f223388d5700e5899a. 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/1f78761c-b3d8-476a-ac59-5621c7fa6480.json and https://artists.proofprofile.net/proofs/artist/1f78761c-b3d8-476a-ac59-5621c7fa6480.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 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 0xb6e536874f1f724577c858edc81d5e655c95c809633c78fa929b79cc896e81d4. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/SE5BU1701396.
It Ain’t Me (Acoustic) [Live @ The Lake]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883327d0ddc33cd14e4e7c453ed3d013c1aaa8ed04b2b25f741688e1c087c8d9. 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/SE5BU1731540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fd4447927692f1c0de8801580ae8da618c37e304bb0749f16605a870072858. 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/SE5BU1759196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5ba8f4ca8ed764d4705fbd27b37e9b04c7889162640768cc8d16cfbdcc780a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/SE5BU1783063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5ba8f4ca8ed764d4705fbd27b37e9b04c7889162640768cc8d16cfbdcc780a. 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/SE5BU1783063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64566f23af70b74965e6903d2f2850e0e01bdef88a2b443c7d807632dd5b9b8. 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/SE5BU1744473.
Come Together (Acoustic) [Live @ The Living Room]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2124708444aa4e7147ea8026871fd07f38c50f52fa178694ddb0acd387668979. 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/SE5BU1716490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25ce049c70d119b4c5d010df66d05bf4040ab177ac5e56c514f61dda72b3a6c. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/SE5BU1792242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397dde7d601b7cee08f43f11f0a71a68b520da7034562034d2efe217cbe45501. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/SE5BU1791122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc453375f2883bb8e4c0bd8121fbaa037c0aff460b3010bbdb8ec9c4fef3c88bc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE5BU1728160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc192373cfe0defaec75a01bf5452a4cf2383a3dce3a46cde4c23912379395a. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE5BU1722420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ff78dc04ad4a837e57b0abf074c210d4364a186c4c1e0a3ddaa8a36efc30bc. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SE5BU1733810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1162488eb5d23606c118eb042d6a9a5fa43bd86e8a1c836b08979b9482277e98. 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/SE5BU1767927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634f80363aa424dc7f005e90a872a6bcbb189e300633d451c012773ba3fbc1f8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5BU1703188.
Walking In Memphis (Acoustic Harbour Edit)
Walking In Memphis - Acoustic Harbour Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579f98df790f6886a2e52c874b128469bc21c96ef6b644a45eafda1c179868f4. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/SE5BU1800616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2690f6747cc824140a3a35bb315d19f88ea528d288cc2a9cfca96f5ac72f6342. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/SE5BU1807869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db9a91539c92a3cb095c7df5c4e89b53be2bae37749250f756e1de4cce15cad. 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/SE5751848688.
Feel The High (Official Song 2019 FIS Cross-Country World Cup Ulricehamn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81fa74cc30b980f27670aa60090202a2f28ae02f7a8ffeb7a67db9f707f7bb9. 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/SE6A91861591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2961893f8c8f439a6de9d0762a7ef32ed338db0e9315b4330fe2855b4ff24987. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5BU1952615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f0161d14878f7f6bdcd7c72335761afd22c70c765b37eab3a4b48b5fe458c4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/SE5BU1878670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f40575daa829c18abb2e8da42b34375cb053d9bec883c1f84899623bec3ee4. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/SE5751948370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55921cba073410c80d027b813790650c7e7b5faf352ae3bb9bd47be859e5250. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN51971067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2049f9c8cc1ff4ed0599403416e5b4ddd4000d5505947651e8c19c971389873d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZFYY2064736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fba25b9e4474d026be6c6fe25c9a5c997392a85171965e0a0ba8ea41e785a41. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZFZ22012797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609145b4f48d5d1f66401e6d0777a68d2503c50fe1ad18c42f991620c60eebca. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZFZ42042082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eda08fd9bf9b76cf003814a7ac3140dfb496a035e012fff0eade354ce532ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZFZ62022859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eee0328b242b7d792b11371c6fc1ab70ded9980bd2de2b1046ed4d8fa8494d. 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/QZFZ72030677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4fc142222c27d448b2ce333ec227928ccbdded683a07c93f734ccfe27563a9. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZK6M2015251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5cfc23cf0d92172072f278dc1e2af114db6c73c8932c6dd894764867bb7cba. 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/QZFYZ2193138.
I Knew You Were Waiting (For Me) [Acoustic]
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1108724f1580dc9b401336d6aa9726c59794e770efb22902478078bca1f2345. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZNWZ2288546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bb6b38a22f4728a110b1fabf9303c79abbe790865e47ec0a7052ef33681eee. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZES62357453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56626abf590a9414743b3865e1fbf3cf3d3c600bf8ffce0a008f17934b8a5f3. 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/QZDA62097228.
Always Remember Us This Way (Live Session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8149e32cc7fd39bdeff4c211be96fba679c70a1cd25d909c29ecc54d2746fa6d. 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/QZWFK2374759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411e8ce3e6c0692c451506c36b87c7f0dc1e434935d5c9d652cd6b8b757148ce. 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/QZFZ62439089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8cdc1e277f3d77d4e9766bd75f40f0f9828e2c440764819a1880932bc9eca0. 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/QZTAU2468271.