1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0dcd7e615b918d5fbe8b8436826e9459f12f96c76a49ddb3c506dac20962bd77. 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/f5334af6-4c48-48c0-9473-fb132a6cce22.json and https://artists.proofprofile.net/proofs/artist/f5334af6-4c48-48c0-9473-fb132a6cce22.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 → block OTSBitcoinBlock must exist at that height 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 0xb75007e1445bce73d8f344aa94802d05421f55030fc1222b3f7f52489242231d. 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/TCAFJ2174756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5972d31db4697626cebc1dd4a136c90c477424df1d217f9c00da017f951bf197. 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/TCAFP2114962.
La chaise pliante dans le bendo 1 (chronique de gums)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423d9819f86efe69b91a1ac6d38bc012e581b286e811c3b403d522d3b1afe692. 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/TCAGI2272163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc55c47b360ec5cb28cc5f9b915fca1beed054589cdbf6130b33076ca329779. 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/TCAGI2231118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefd3b4c23fcd707c2752119f2e5144003fdbef2fa0ce7d70d8b3912a8b72672. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAGI2231164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5a423f54610494dc78a3c0d4fa906c8ed20305d5ba0e7e2178064b874572a1. 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/FR5R02314003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f3e5a5522319f7bb048d6533f2c4afbb293790e555f81f5c21854d4cd8184a. 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/TCAHM2349446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb9ae4750ad63feec4df207a82f38ee1f413ea89e7602dcf2ca9941b03bbf3a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAHM2300946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e148bf123d0b2bd5bac08f81e4e0cac28051824b60f1cc462767a57b417c26. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAHM2300981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3c4e9c4c79c96a5c3a023f95e977e9e867f4043917292e66fa67038ea07810. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHM2300992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba695a9efcd9d91c7abaf5833067f3fa3edcdb523ffc7d8e2f60ef4eddbec53a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHM2301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a7a0e2ab7868ee77d59c3418c099cb4d52fcf4b2e9432ed26a02e2a6f372ee. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHM2301041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7110505cd147a0838bc47e09a6417c0f616fdeed5a6988d0fcf7e84cb2f9d9f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHM2301083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d7e09fa40796387d4f2dc48bb05ec2a3cad67d53b63c6c0390c2f31e562ce1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAHM2301094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8371346edcac02e884dac7de5ee5713ad909e846ee46394dfa843df3fc19ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAHM2301109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885bba59bf70ec2883a3cde653d4c14c9149e1e71335ecf2f9553c361893590f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAHM2301119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844e669723f2416171ee6f2f706aaf5098fa3c4b7f52495a5c182e5cb13acafd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHM2301137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760aca27ac37084531bde281bfaa88682c9042b51fc972bd42109914df54f01b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAHM2301167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea079c18dfff93fb3c934399feab92127dd5081dc934d58a3a4e511c9c0e4f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHM2301174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98322a0961496a3afb5ea4d0ee86c0a89e251ea960a9ef155ac45dfe2fa6bf3e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCAHM2301186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5fcfd61d6fdf05322cea93062cb70db76932cdb094ec38e2157045411bbbed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAHM2301191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5b41aadc5ceeb25691b074ffa30eedc4d9801942a1c2eb754436554545c31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAHM2301197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4259ff20bc8a17b2a8353433141f9f323391c5d9b1397aa522508fceaef64d7d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAHU2450476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff845d42d8feff88c0f6fac1577a82bc53658989e6dd2b77f6c6f3c59e99505c. 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/AUGBT2453649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534df869e35f0cdcbea299c2ec6ee27d188324020e1449ff4073e26f047a3766. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/AUGBT2453613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2493436896a44b89b23dc7c0dcac15d67867a72a4805faf83539ac41b9a9507. 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/AUGBT2453621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534df869e35f0cdcbea299c2ec6ee27d188324020e1449ff4073e26f047a3766. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/AUGBT2453613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94dfc714ed38569963862a17471078a74059af68a2124202558d8b6cd52424b. 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/AUGBT2453615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b31d750d7fb69efe8382e7451910513e199bbffe60008bac07b6aff6204b7d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX762406979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b31d750d7fb69efe8382e7451910513e199bbffe60008bac07b6aff6204b7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX762406979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce15c290413a812f2af061eb680a97cda94891e0ca26c296f8099545e038cca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX762125246.