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 0xfa4a55929dcf77c5f202346d7ccdf11ce1ab0effdbba9f133a0b95f4eb9cd712. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7815cb4c-668c-4e5e-a997-bc3d572b6552.json and https://artists.proofprofile.net/proofs/artist/7815cb4c-668c-4e5e-a997-bc3d572b6552.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Accordion Lifestyle, Vol. 2 (Masters of the Accordion Play Traditional and Popular Songs)
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 0x666a4607d26e71ed77b6e2e0b2b5b4236e7bbd6cac87c60d2081b90694dd8019. 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/FR0W61493808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69526ae7538e778178086b5c61cec5d05dbda7457c197e9d6d82fba3b1d617c9. 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/FR0W61493795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54805372c7598a4f937e89f3251c650bbb35c9667f97623c2ea1ed7b7adea16. 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/FR0W61493803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d904274fb09a387e87a5a2c8f2fa4ac07697b8dec346aaa5a2b98a5e7fa112. 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/FRY510887132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b24aa2533243179368c17166d37ccf76ff7f803ebbc8d52458fc4fc0ec4122e. 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/FRY510778657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1694dbb871c0ecf705bf1ebfb419ec4392663ae13e8573e03b65d26e4c7c07. 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/FR0W61493787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28051f9ba038fa5a959cd5b6fa49f360af1be04c4689f9f38cd48df2726c6beb. 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/FRY510887838.
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 0xaf03aac80ca46e033eccd8d650afdede09e096987f41ca7868c61f3a23c30bea. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR0W61493798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41ca6b65f46d3358bc1ade4e13fdcc02cb5f7f3975354ababcb800fd6fb1037. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRY510886403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3141b5a1e69837d672fe1de401d609c70543213789980d76f47d5d43704f014. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR0W61493799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2febed130e6bb48eb79769addf14374269d125b12b2aee205eb83ce8ac3c08. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/FR0W61493785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81afcf7d9c5aafa04ab0820e2250bd3418a98a2e504f313bd2dbfc5b3e2aeafa. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/FR0W61493815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfb885d5caa9812e4cd5161e9ed346339fb674966b0ef5136ae6a0e76bd7181. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR0W61493793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed3e3bcb51716052e83fd5310322d28567e69f4b920943744fafef877505751. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/FR0W61493813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b782d4218bcccd3e2177955e7b6c2d6158c71b5198e453e2780633185a8582b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR0W61493804.
The Accordion Lifestyle, Vol. 1 (Masters of the Accordion Play Traditional and Popular Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4684654b3e43d12761f0be80368dddd4fc2e03c93969cfe4c954d05a43de92e8. 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/FR0W61493784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bac59ac79843154d05fbee67ef5a4434ecaf81af45630140910b738a577e41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRY510887816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78591fde4cb1738bc0bf8e6512b13e30999ffc68a24e75180b9fe06820561e80. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR0W61493789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b1dc9f6e7193e78173a1585f9096b58cc8ce319f0696c56a21fae0c99c2a2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/FR0W61493794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfd1c9bec969a682c8a3bdff69467dce5ad7ea2f24f8b76064eca440f2a5862. 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/FR0W61493792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06554730c832fe999e0ea67612f8166ea409bafcf5dfa8dffb7c249bcea7635. 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/FR0W61493805.
ABBA (Medley): Voulez-Vous / Gimme Gimme / Waterloo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2ad48e8080faa1c02ebed8647d00ad44ed127424e354c4bf0ffe63718ebc3e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR0W61493807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884599944a56dfe7aff915a7eab1813fcb3aabd12abec2c78fd1819fcf3798d2. 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/FR0W61493814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a75382cb789a3ab6a78350e80d1749b422cb546e80b0bc172ccdbca90d50ede. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR0W61493816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6ce4a5d61b22ecbff4f644b91aa4765a40558a58ce963394cc5455992cad86. 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/FR0W61493802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6281846d247327db62c3fc7f5ffd0dd11cd23634bbe6fb39987a80f71e37136. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR0W61493800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc2efc1e8d9aff78bec9b97ae7e5617bdeb6e348f3056fae8cfa1d9398adde3. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/FR0W61493790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14191343da4b778b22036c475bcd08cdd1cb08c023f33154381532de136388fd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR0W61493810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1bf9081f86351d8dbfdd2db275ed8aaea29500feccd292de789ab20d2fa99c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR0W61493822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae3bfc844b34fb321d3da78caa2fe2a2f01781f6fb39575af0605468152c6cd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR80T1000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56552b4f87677396a56421f413a85d0de90b323c86bb0c1d1e8cfd0a2bbf210. 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/FR80T0800721.
New Year's Party Playlist: Accordion Super Hits
Accordionify - Top 40 Hits Played on the Accordion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80b4e87673cde9959caa4fd66a09159c1acec5a182a1b1400cfb03601b7a9fe. 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/FR0W61864062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee942a502f11e9edcc2c8b61ae2b930f3523bd4999df4dae65af8cac91b29ffe. 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/FR80T0201142.