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 0x50b75b1f01e9e6a522a6c17f7de203e7801ecd70962ac61cfa0664e449bbd98d. 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/e0b74db7-6a93-41c1-b8e4-c7e3d1458fbb.json and https://artists.proofprofile.net/proofs/artist/e0b74db7-6a93-41c1-b8e4-c7e3d1458fbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All-American Showcase (Remastered Edition)
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 0x4c6fd1bddd8bbe3713ff63fbcdb8110e670a87d50cba7a373f8fa14a32c388dd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBBBA6760070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3741746e13e1dfc375b4677d609c2dcbb9972566059f8355eeb2df92b4f9367d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GBBBA6660152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a38a30643d6c351ae0a301b7a3daf729d5880183fb04e43d499b62f344605. 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/GBF076720610.
Over The Rainbow (From "The Wizard Of Oz")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062c0170c4f0234be49f0bcc35caf216c70bb0656277f77d0e040aa2f30d2e52. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBBBA5772403.
MANTOVANI & HIS ORCHESTRA - WE WISH YOU A MERRY CHRISTMAS
There's No Business Like Show Business with Mantovani And His Orchestra, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0012ee5a9c3a86720a4db421ae4ce90c974c6d8cb2ea9cdab771b246360c7f5d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/DELM42004464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be048f350400082d1940bc1a56db2960ce0e2a4df3435907cad1b4295f2a9a6. 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/DELM42004462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5f80c8fe8d2db612f6c5a6cd95b55a1135619f645b3723303f2870ba2b7ac8. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/DELM42004468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cda93c59d22a6a8f08f894c307d4a436e447af22b94e538b0d2d409a38e544. 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/DELM42004463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdeb611507876d6a6bad3543ffb2c0f5b02d10314365025b6f7c64e49398f059. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DELM42004459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d330d9d98682c730697b03468eee2f619473a73bd5e2a3d33230033af473231. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DELM42004495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eeca73579a0d6e39e1155c40d7d794495efa014fd06b2e02929473eadef5a5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/PL44J2515133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0117bffb0875e9aa8a67bc77149ea766bc8ab97253cb917661585482024d8829. 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/PL44J2515134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4523003795d9cf164011a98e60f83f7ea7f6cb91ac41e021d66244f2d0c81bb0. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/PL44J2515136.
マントヴァーニ・フィルム・アンコール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae9381e0d7e27d6435bdd7194749763f9fd62496b4d28dfae695eb7ffc77a50. 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/GBF075821120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f4353f51d6a65fda2fdec3424cea7303cdf8e0fb44e2c15149025b95dc391a. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/GBF076100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8504f43bbf8f23d3d52e5ff0b2180a95a46ed7792e7b62ed8edfb0e370448192. 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/GBBBA7460010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2beb507dcc2b77e761bed3432bb4d4ceb689b491d8bbf1fb35fa0aec0068b93. 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/GBBBA7260010.
Strangers In The Night - Orchestral Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5aa86d162fed20fb523a1948849307088fa8a91a56a1596dfcc0a70982ab55. 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/GBBBA6660140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fffe99eb64ae7baf3629d3f7eeb3c80256eb9b7932eeb61668ed15849570e53. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBBBA6560060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ac984e2facba60308dfc4b6e235a25c2c58efc7c96adbc0d0a2b42231641a7. 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/GBBBC2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fee1014d9be6ae7ec2d506aa537e6ca211b0e8cf2375c9c0db7d06f2cee8971. 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/GBBBA5860070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77c55c3ef5564b20252586c76d5bd8706f1feba5f1f8dc9e304a9c282e9345. 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/GBBBA6960147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050a7963a548dec880fd3ab198388800a4f7d3ea2ba4c31bcc84e26d0c686e8a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBF076421280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047a38a30643d6c351ae0a301b7a3daf729d5880183fb04e43d499b62f344605. 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/GBF076720610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ca73864feed3c57098d79eafb614abfcce5c28876f9078ca11f3268ac35c12. 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/GBBBA6460010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa06c27c034e059ca0eaeeb2867eb404ab4fc66845a7c1d1ce664fcc5a6b3ca7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBF077520950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f9c492c7a788a39486d9ea6e69224e9bf0cb1a09f99eeb7c9abda1a3b711ce. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBF076421300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e1f88b6baea5f6e5d93fef84a092e22144237f143a5e17c5772c9eb076b2c3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBBBA7460042.
Isn't It Romantic (from the film "Love Me Tonight")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3826d55a5f4a1a83d2274d06272a7103ce8a39f686cdeb1f344f660902a978. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBBBA7460045.