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 0x2c12c6d902fbc21aa8fb23576d37d4cbe6a3d8f034fe54baf65dbd4d1498ffde. 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/4b3c6d90-34a1-40c3-be20-e9ba4da576b1.json and https://artists.proofprofile.net/proofs/artist/4b3c6d90-34a1-40c3-be20-e9ba4da576b1.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 0x310e33ef0a4d1ee5f856d71fb17c577bbaabafe29208cf4b3bfd9269f4d371c6. 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/ES71G2103976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a78351b857156e779097ae025fe51dfe9a04fa0e1d3bcb997f07734d4f4a88. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/USDHM1600197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c30b3a481e5db7e6f06b83bb4d2adbe083b9a2ef919360ef04733c6ad09e74f. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USDHM1611401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87e1aa5b03df203df6f90d768182ba6ca80eb6518391a48ccc89e1d2779a7f4. 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/USDHM1611403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b418c43853981637384763fd01be3b1f9d0dec84f7d21de60ee299d5316d725. 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/USDHM1611406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8dc70376ea3b38fa8fa2285428b3de23a8993126d78225161d8c7862b51c38. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USDHM1611409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77007b7de70d33754387b45acbf46dd2a5349659bf90d7546da4d145277c0e3e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USDHM1611410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3d64c519699e82732234eeee133541ca57f79dcbc7b8d2bab61396fd3f4e71. 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/USDHM1611411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3f1ab25a63df95f5f7e208519bcaec8982143ad156b92209050809399cf3a7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USDHM1600497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad0fd8602aa649f3fd2295ba44ce7aff848dedf07494557a1375995d0e9a11a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDHM1529932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292e0bab953a97da29eb0a5f07020bf5359b93f1a38f959408630c47351f48a7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ES71G1829058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f0dcddc631e4311e8351a27f68eeb6709211a42fabb8d09948f75904d29bfd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES72250598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90734e44ba66b62f0ce0a68e504152c823cb77d8f601adcd6f7b06d5a116167. 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/ES71G1722516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df55023f2782f19aa7c8792de481cafd9f38f7db4b783d3bfa0c3fe7363da40. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ES71G1722517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc587d30101e45bf7ba64eddd06d0bc63272dfa44c5c5d93e1a5db494abb98db. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G1722519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926869914df8b5838b67478e7506ff0698608e5006189fcdd5ec01a799ce0c5e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES71G1722521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa004686a245d13219c25f14917f5f0b1d4d5eebf48d067b3c75bcbe81d7b8980. 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/ES71G1834288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf661bc7d2388757896c954bc88f8698c35314d9d23d9357e94feda4d5a1f4a. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/ES71G1834347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a2aa7d2b8530a40be26f4dfe0fecaaa4a1793aa07866e217db72fd145b1ade. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:11Z), 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/ES71G1834505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e75b160c64f9c92cbe7319063c72ab8b612af5fc364ed2107546e4f84dcb45. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:49:55Z), 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/ES71G1853020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91c99bf14be8ece219d1784926a0d40a199bd61068c0106a2a65962e17674c2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ES71G1848712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf766e812b0f30c52e062789904dff525f0f1664666616251ec934469e020e1bc. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ES71G2001229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009ef0fcd3b000d318ace7620a425fdef0f2f0b6fc76e9bd4ef24dbae44b11a9. 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/ES71G1834165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f8dc1b76891acc2f7482e726ea333749367ff3e405b020566a5ac0f776ef7e. 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/ES71G2133088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f821972847d3a643965c0f3d98170e3023833acd7a39767f6fb1926454c361. 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/ES71G2207729.
A Day That You Are Not With Me (Acoustic)
A Day That You Are Not With Me - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206db17388038d6e7f0bb3724bad5e5895dace5904f5ec8d494fa4a9a6fbb60c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES62276581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5bb7edf7f0951e401cf62fc7d5fdadca49a98e120938e3afb53c430101c871. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/QZWFR2473796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434ac3d5ce7c46d96e680de13dd344fceacb64219dad1288d66e9572547d5973. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6P2480843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecc5b599a2d6a1b52047725e79dc438f6ea083b14ba70c9ed5d89de3fce348e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFW2441051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27193ce0ff703b425771d85ed3c30725c441073dbb66ec428efd94186ad8e363. 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/QZDA42577672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6129818bb0111e2de019c780be5327c6746bd4c14add514c58d432e8da6018e5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6G2586432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d505d3fe4b4711b27a13945ca7d12052da386a17d0112a1d19215ca0a21a70a. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:46:37Z), 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/QZNWX2506866.