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 0xda45949660d1c5be47bc03f732a1f26f4fd29173fed25c5512b673cd0f458e2c. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cc696f3-188f-41a9-adc9-4d930c827223.json and https://artists.proofprofile.net/proofs/artist/5cc696f3-188f-41a9-adc9-4d930c827223.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 0x0d115336857337a4d07109a60a68209f7623fc63cc44cb44b74ec1be32ea3b79. 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/QZRP42574629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddc78a49f1a519fb2c568951e167c69ee47147707bc1006867bf841f87396d0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:31:46Z), 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/TCAIT2400813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6070a4cb78e07d9fbb977c1e13cec02d3b1c4bcf531a0ab5e3b3d3bc7f7762c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAIT2400873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff24885074098ee36969dbdbc1ee406fb35471270d09387a48a5583c34ab3b0. 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/TCAIT2400901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6f39cbf311e07dfe5c39bd8fd5f78d6427f91dbeeaec2a9137c5c0f72aa2a2. 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/TCAIS2400912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52984d63bd896355a7faeb4a7796aa6563066fae4deec204256a95b01943815d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:44:03Z), 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/TCAIT2400927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fca57c5cd16fc75d1985dba0395c160f3a6804e6d17cc5b566d808fdedffce1. 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/TCAIT2400945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dee580bb4a37c37ec1a11e8f56ec61afbea353b213d62b368cf91ed7158272. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:15Z), 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/TCAIS2400955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795c34ec2111d421f38bf6a974410ac8d3158bdb1424cb18214477cb53cc2ffa. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/TCAIS2400976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2550113547ea1985c850167a174e3ce9877dee889b495a88f546e344a9fb033. 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/TCAIS2401003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ded6572cedad55a44762e8377913d1c3a9985835630e7f6c7ceefc272e85476. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAIU2454125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259da3261d994257ee16605a16628d55d37e053d7d5514c869eb7e2b6e4aa08f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCAJG2590685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2d8115256211c555ba6bd87f8eb36c75f2a20539b882d517b7295b9403aadb. 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/TCAJK2579862.
You're Not as Based as You Think You Are
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e5241169cff567ee8c431d02696d3742caa55d20299f3ce6e3d278f902c9d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB62546263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eeb03c61ca1ad2b51c20fda95f7f401c7a2960bfb0892c1d4f3ded350057943. 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/QZTBB2559149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4942f46cd2434af8c695e0c504b890e12f5d9df6e51dbabd6d0eb42d3797be8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZWFM2553012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de27ae6259bc823136eb52e05de42e4268853eea4171db2f445054c349f2f00. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:20Z), 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/QZWFM2556369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe862fade0b15ba8180295af29d1e0c0f72fdcef55e15a095ba0b22c29de010b. 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/QZWFR2557802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb39492c57d8d5247a3310df2d2ade783fa488647a972fe26e25e52a38ca811. 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/QZWFV2522700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb161763bf2e67f489ed9489b41210ad5e93aa0797fe66ca732737d453a6b6849. 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/QZZ7P2545656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040bffff4016d3cdbcea3a9432689a09b76c9296b6f6c3842017dcfcd36fa878. 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/QZZ7Q2520623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d40f63a416890e401f310e5a85119618f260669c5cf219e4a20bf8624f17f9. 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/QZZ7Q2520624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca90ac0266741a66b35e4c961762695ebfcadae5e98616b05e27db6615a0c485. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZZ7Q2520625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1097afcb97794fc7c1e5a261f38d4e136c24ef99987a2592f13821f10a9d952a. 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/QZZ7Q2520626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e500f4bf1261d4ce76c636189f3e11055f1d7157738d7a1faaf56c3a08eecdf. 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/QZZ7Q2520627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62f9ca34f7ed5d427bdba6721c3a97797f28ac0c3d1e4ab3d18b23b7e869c32. 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/QZZ7Q2520628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b26ec692ef0529d7991c9ce937008b236e5f0a55a4a7407916014899e34dc6f. 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/QZZ7R2583094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be64f324bd152d6d0f191ae14da7b8f53a035d9d3b0ee65b4432b7e52866c60. 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/QZZ7U2574552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd76fc52b8bd421cc1a1e93cb6674b4e04b01517fdc2b0ecbe4f7c7de14bfcb. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZZ7W2565676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea06a1e5cda4372a196c706633d224c8bda3ccc2778088a48b1d6eacb18dc35. 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/QT3F32567688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fcffffc2c65868dd1f55f8f60b1841c7e5e073c11804fa9736cff7b7c9756a. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:00Z), 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/QT3FA2534066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35fcb26793e5778714734227708dfc1f51ae7b33c795662e04da3063e90cb82. 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/QT3FD2528990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c379d874ee18f03e98f18f860a76af12ef36f71eb7f5674896e9cf69ffb0714. 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/QT3FD2532252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87f64f68e0d81770eace6ddf8b9d2972a03c9c157085a79120c5e3ee3d469b9. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QT3FH2504458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a3f9c47ac94aa799c18d9005ef1fb907596f6e1da1aa104b3f2bb7bb3ce04. 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/QT6EC2548570.