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 0x83f3451a36a985aa9729e972664ef89164d5ed0db7531187fbaefe21efff90fd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90327158-79c5-43be-b27f-8e13bc1929a3.json and https://artists.proofprofile.net/proofs/artist/90327158-79c5-43be-b27f-8e13bc1929a3.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 0x9190c95edc9bec34476e64eb5d9978618257e2c09d99c5fa5e9b00927086f7b5. 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/FRX201706196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840f97c345c6f0537355ef07e66a9c2ebcd18c864506288fcd8324195056339d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX201706201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a937039772af97aac3a38baa8fee233a2662887ab57ebf3e0076cc6ca2f465. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR96X1796776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fc1cc6fa5cdc35546680da9f163afd4ad4ba301359bd4bde71d1abe854c65. 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/FRX201701925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54955016fd6c2a7bb4fb494d491e21442c7e6e30f5e33f570e92ed98284416f5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR10S1803436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d017086e4a00048540abdc5dbbbe78e7fc083f8df8f0f2ac29691b7b129b1e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR10S1850380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa527af04cf35c0471433e5daec5c16b192e9a4c1ff03b1951140de0e00e72524. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:21:30Z), 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/FR10S1850381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79397cb013b26087f9599a51e8f88fd274fe888364b9140eb34b0bf9c62c1d2e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR10S1850382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afbae400db82ac1e2efee5797829976b6d3d1e89c25125df6e08c4afbcbeedb. 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/FR10S1850384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb6f28bc3f2e477469b29a1d24f65fded3034e6911bf73fa76268c9b9455ccb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FR10S1850388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31923a07435cb28143763a11c3cc9b8bc68b961afe5153c4c48cecf20761cf1f. 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/FR10S1850392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a4deeec260e81041e35312e26e33ba653f88b87641c7812fef51e4b2481e53. 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/FRX201754033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d033dde3c1984b228cdc08c1df3873130b6c50f0200006633f26ade5b4f20c. 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/FR10S1869355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd302da0f8feaf97f371f784b182c72261658e758ad8d80e344378918635b79db. 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/FR10S1878509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141afd9fbb629bd9a9e43fda18bb85b6a7d53f00f03e163d469a89dc8037c2d1. 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/FR10S1878510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacae82a716d5e76ad0c5f3be5619803a5291b03807cf51974e6e9c0db7b2149c. 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/FR10S1878511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb219effc9161bcc4c73a505044b06f2deff313d0cfe0ac2d2cf318a6328a47dd. 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/FR10S1878513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eb276d75987e8f59ed340905fd9579820e9c2581cdf6283413de19eba7940f. 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/FR10S1878515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432b686fd03f92347f646e870882be2861960cecb8936f775e2b18c1b5e05df6. 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/FR10S1878517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5515550d3d3bd798f0b4d13f570f5aae173d4b13c084d982acc02ef71d3829d7. 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/FR10S1878518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86117cf65788002729823383a90b7c3336777b3ad0a3803102dab5c5ed2a88ec. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FR10S1878512.
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 0x5ed99c8ede67a6f5f3814fa666d1b7aca5caefa65ed53a481a1d5c5b1b27f48a. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/FR10S1878519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6c52d72836295843e1a46a696138400f36fe89c4914aac68dc2067f41d1508. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR10S1878520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035e9dfaceda07a335f149ecf0c321ad0f7e4e6f1399376fd7c6dec1826f3027. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:30:02Z), 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/FR10S1878474.
Operazione Ricchezza - Bossa Nova - From "Operazione Ricchezza" / Remastered 2021
RIVIERA BELMARE - Summer in Versilia, Italy 1960s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a5b5a7e23c61a2be791ddf74b46f8bdae0dbae4f8480a23072b12f83ad8889. 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/ITC002100466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e4f670b7456982bbd3c43bfb76d87301d54373f103e105255894a10d9313dc. 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/QMBZ91989980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b46e4d4fca1567fcc4df3bfca72302f0f01fe48dfa97c080af265e20f14deaf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX281742437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda6851cffdc0e2f672a0c761fd02acfb887fdea8d27a77203f7987bdf33e25a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FRX281742431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afc12b54a6aa279f348fd9c049a6df67ac5ee8ebbfc0fad50ff3013e5a78913. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FRX281742433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e89e5a5bb81fc85417f59e32e1f0c378b6cfdcb4cd655c45bd6cf4922e44af2. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/FRX281742440.