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 0x11fcceee2135e1c2a1bb56aa6018b9ab5b0cc51bb89e97e5ca9e649ac591b979. 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/7afeb1a3-b74a-4b13-a54c-cbbbaeca4fc8.json and https://artists.proofprofile.net/proofs/artist/7afeb1a3-b74a-4b13-a54c-cbbbaeca4fc8.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 0x17a69585ef8918c3790618eb8cabaf04cbeec8b976b5db0983d4a4e0494798ff. 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/ITS781701622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fce46db0ad2032cb6a1357a65732f0de4831c15c4b5b72af7c2819452104b88. 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/ITS781701623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e8efea23c77fd24c7f576262615985f1f2ab36ca5a36ff5a8437da9cd381dd. 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/ITS781701625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf171d23cc6d152bc136a81aa47cc7cc144de28b45e6841b8e81d8d109992e3. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ITS781701626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e167db9329e71aef41b2a2ccf8fddd7c621de57a9ad2f79dcffa2fefdcbdbf4. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ITS781701627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a9416568a5e887d6a833af7ac6552fb515973c34a052236a24fd19f3c4529. 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/ITS781701628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d018e2027c619991c1a5ecb3e30d1e9afe4c8de48c09474c42d36d65f739c4. 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/ITS781701629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa28fa26719bf174e84be9dc2188c4397ab0a8dd808d58d384f2657c2cbfbcf0. 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/ITS781701630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7abd4cc89f97620863a3b90eefb7f82d2f38fc532fb7c212109f67e1a48dde0. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/ITS781901265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7697c08cbdae57a4e76cdb69136369663539a3ebbe34f2948e2f432adad56de4. 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/ITS781901312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d3368dba4ec585869680b48962991325aa1f2b3576c7e698605fb3509c18b. 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/ITS782300234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2714ba95cabf57f8acc5761360f8750b977552ad8bd9c8bdc6eb416d0b442a. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/ITS782300493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782c8f382bea583d7234e248e1d581b52c4681aa9e92cdf75bdca182da5d4a7b. 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/ITS782300494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d62efb5163b1a0bb428df9c56a013b63a5e1960b3796f76f52ccd221d7d5368. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ITS782400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69423c3efd3f721af4220536b20c34e7f6ddb92af32a6aa14f772b956a17ad40. 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/ITS782400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26669b9d10129c96a3823418c48d18a31f43651665f518cb0c41321a49fccb6c. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/ITS782400427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd5c32e1abcdf1b7c72f2238ad3ef6eec319edaf6cfb032cea00ded89a4223d. 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/ITS782400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc376b0d4c7d30e757165f089a2a42957e6ae84a7e4e0df281d675b9b9a281694. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/ITS782401013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990bd3344471b9b25224defe61f7f8440f419c7cb7e2ae26cd61268bf91b960b. 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/ITS782401014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d3c43d4cce13c7f74c35385f208eef3290ca2527ad9d1b640ab022759910cf. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/ITS782401126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73e520e16d93e40c93551e2efaf8cf67f49f6a9aeee5a548e8f292db21b7b54. 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/ITS782401128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33281db4999a45e03f14cf553a1f94429cda222277d93b55b77c8e554a250139. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ITS782401385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2f59afae46e4e3884256e05a4a6f707485e3de894e3438218c483df6f87eaa. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/ITS782401386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f3d1ee80e4d1202425a0beee3e504784bb4c3b92903355fcfe3579392f5b9b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/ITS782401396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffff808bcd5caeae43c91cd65c9f8cb9e79851d4219cff5107676bfb7c9701a0. 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/ITS782401398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce03eec2e6425fd76d949ea4578f4ba394fa919a088a540f64f8b5d286f2dd76. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ITS782401671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd343a6803120ec78239b6426f641c24479455a3f458cdfe67d248bdf5baf1892. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/ITS782401722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5552d964767f87960bb7c731ecdf0a4f716bb1e156b35fb1cc16e575a60c9109. 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/ITS782401887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefeb26c80452531910959db77db67c9a1323dd66755dfcff3ddc68224a754564. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ITS782401941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79caec24feac1399b899a32c38a7304a48929bcc0424c2b4effb29fe0ab9673d. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/ITS782402191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6d6b513ca97d3f5c4b4003ac3fb7b889d265f9bfad863b05fc940bbef66662. 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/ITS782500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22373957d3e3a45dd5139713d4a8ed061cc2ffc7eda347ff5aa8896d08dc2c8a. 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/ITS782500224.
Alpha Waves : Ambient Music for your Brain Vol.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f693ecc15e353a495565b78100b704e13c29437332c052cfdc2ea18ffb6887. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITS781900977.
Brain Dots : Study Music for Brain Power Vol.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6a3cfed06cadff50e7300ece144c7bdb12f0de62e3995807250c76e791d705. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITS781901277.
Alpha Waves : Ambient Music for your Brain Vol.8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7697c08cbdae57a4e76cdb69136369663539a3ebbe34f2948e2f432adad56de4. 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/ITS781901312.
Alpha Waves for Concentration (brain power, study music , music for concentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e8efea23c77fd24c7f576262615985f1f2ab36ca5a36ff5a8437da9cd381dd. 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/ITS781701625.
Alpha Waves for Study (brain power, study music , music for concentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf171d23cc6d152bc136a81aa47cc7cc144de28b45e6841b8e81d8d109992e3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITS781701626.
Alpha Waves : Ambient Music for your Brain Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2cea3d370237aff8d15b5ae00117db0194bdf75a2a6f37b141ac8eba0d6b49. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITS781800469.
Brain Dots : Study Music for Brain Power Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5254b022e13f3aa66fd0b723231a4ab65dfa4f8bfac807928ffac203d4f050e. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ITS781901329.
Alpha State of Mind (alpha waves, study music, music for concentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf171d23cc6d152bc136a81aa47cc7cc144de28b45e6841b8e81d8d109992e3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ITS781701626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4419e808227d528f9416d7789a8ed4168e5cac6efdc20d466a6f378065cd5c0. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/ITS782400122.