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 0xac0a85a25df02cd6c2fe4b5a3ed4f6ec93de02a6811068dd0c88637306c4a729. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebfc1c84-e661-4e86-b321-717874bf1a65.json and https://artists.proofprofile.net/proofs/artist/ebfc1c84-e661-4e86-b321-717874bf1a65.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 0xad9ee34d0f4c78a495639f6219698c8bac09d5e8755ee320b6137351cf5f5570. 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/USTC10741940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4432faf2939dc9e21973571dacb5ab0f2afe2365b1a5169d87f92908ee8ea5b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USTC10741947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddaceac20e0d3b0d80c4bbe3d6805c264ac50a7d36e2d93416fab3468145f28a. 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/USTC10741948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3bd8d7026cb2119377626962c3e1dbcef0e78ac93c31610afa1fb0a983e7ce. 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/USTC10741949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd004a41a77b2aae386ba7af71e0d765b620731d6d9977efaa3f8a3343b862e1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USTC10741950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfba4990fc548bf60ea0a0121eabad7db9c369868460f09e44f6589d17fd7ad. 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/USTC10741951.
Live: No Time for Tuning (Live) [2019 Remaster]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686cc3705479fa613d0085d939ff25197e215c7d8d607cb8de87310b9564b8b7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USNRR0700677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf0c09bac6dd8130733c95cf6b36d420a9fe432248a7859bcd8c07b53a07bdf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USNRR0700678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac4f9ebb81bb7e5c40ad1d50a7739fa1f65eaa427ca085ce57ab7586e44c711. 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/USNRR0700685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc81229a6ead8a58dd1caad2687c872ce462884e8616d45b6de11e2337276ba. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/USNRR0700686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25e611604cadaa3c967e07cf51cc749f4eb2a52160c82a84b9daf9214b9e97e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:05:18Z), 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/USNRR0700687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb75abb8b19946412f9a03304abbab0f24afc8f03d9158b3c1daf3d42422ade. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:50:38Z), 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/USNRR0700690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74919731d1f699637113044229645e2381ed95f49bd10f214dfdc2bb1e4df2c. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USNRR0700692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20749fc2e4ceea9d3d40c00718bc6ee6741132b67a5dec9cff152be9f0c77eb1. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:28:51Z), 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/USX5G9307101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d26e8e00ee760643d99b44405e2dcb5a1caa84c0aee372f4340202e8268559. 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/USX5G9307102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bcebc59cf301445daa95e6ad847c0cde56ab3ddb5ea124419ccb1d8b13eee3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USX5G9307104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905e1cb6af776e2d83eecbedf3d409cded0c89a39c0ee24ebf1b03747203d122. 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/USX5G9307105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f08bc15694af36160fa5af7588be2b14e8e1078353ac17c3aad58c22f3a2e73. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/USX5G9307108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf56f29ee8716211402e6cab1a5ec72611df2e93e1a9c2775592685d410774e8. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USX5G9307109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81cdf2e8c86d6e29c27bcf7bba74e65a2a3683350bb8b5f994f5b4c4a946f4a. 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/USX5G9205904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bd8717d53e77dde585284556674381a27389078778f1e88723119117adf59a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:34:09Z), 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/USX5G9205912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeca1d9b67ae1dc4be4cd8240e9b25f4a18bf900b8b16dd93f1d1d485220e805. 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/TCAEE1951359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba2e6e4a991532eb5e5c75c112ef2d606c1539d30474273eadabbd15925ff06. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TCAEE1951372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e257809c4cd8ad36608ca3312e9307c59ea84061460bbda3cd359718b9dde55. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:49:40Z), 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/TCAEE1951386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96aed2988ca435f6626e142285bbb934af86e3b7b1c295c90b87a4d55876ddb. 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/TCAEE1951395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87203b938720041a2d6d6a9f1f47fd292b6e4e44cea51d9a28e479d821afaf9. 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/TCAEE1951399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd73781023bf18b2884838a152e5a5b8fdafe18c7ec2279f14be7e1b99b05723. 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/TCAEE1951403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9240790d7b4146ebcb06983e4d9a94791ece809a4cf7ef30af96608f42530bbd. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:17:44Z), 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/TCAEE1951466.
Play With Yer Records!!! Mistakes & Piss-Takes: Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e88a2a950a773637d513c415fd254ddd7a1bd54cf0a145776a76efe639fd47. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCAJI2582301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2392560398e325f72d89da81dcb157ae0d358fe3b87ba010747974fc64bfd5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:34:51Z), 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/TCAJI2582320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05caa312835cac09d4bc079eea0e4653b82a483405d9dfda77b797e501ce588. 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/TCAJI2582371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e92f746a14eeabf855a4b460163d523694b6be02dfdda4976a676d3e3a2069c. 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/TCAJI2582387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace3c19eb61ccaa560415f3e13a51051f8aba35654dff7e7bcc5d2978ddc7eb9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:17:28Z), 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/TCAJI2582403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e41f5cfc72917e3c2cb0165418151fa98c6c3ee42bdf6f98d9fec5121a4cf48. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAJI2582441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23cbd7e3b381d1f89868d48ab83b82b91fbe5fca3f91e965859b29f4558d1c. 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/TCAJI2582456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f16d8f92a1b43967bf3c8ea2cb36ea9886c55160ebfab856b0e4814d1d023. 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/TCAJI2582528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595a5737b798a12d8922b019e9666409b6ebca5c846497bf9d8ccceba193e426. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:25:45Z), 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/TCAJI2582560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cead91e6e46b0cd468433ed40b484a760a199c07eb98ec486db1f11a45d081f. 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/TCAJI2582601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5836b7f6351e38aab6e0e54f985f7e7416065c3c31de393d80d1219456d489. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:07:19Z), 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/TCAJI2582634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69df621118af18649a805fcd7471a7dea4d777d3eab840bb975708e55f55489e. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/TCAJI2582644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457af5911f26728cec44128d623c18268a0f8fe4a1d13f0e8dbb7cba5a86e4e2. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/TCAJI2582688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa7ef50c9ead8363bbf078fa0ee4b761fe55895f3bfe479390634e004a1a069. 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/USA560672266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf476659bff04efc67edd67cbb36052ec1802e14238476973bd123dccf6bfbc7d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/MYEM10500096.
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 0x02fc96b404bba266cf856561df261739d722d9526c171f02a388506f0118ba1f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USKFR0400467.