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 0x25ac412360bd427558d0996e98996dd4281f6cd78013d98e74be162044bbaf26. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/058283f3-1ce1-4c89-9286-01ea65bfd528.json and https://artists.proofprofile.net/proofs/artist/058283f3-1ce1-4c89-9286-01ea65bfd528.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Divertimento No. 6 in G Major, Op. 38: Divertimento No. 6 in G Major, Op. 38
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 0x2a88c6b0691766590d50ab854649104b498c9d74054964e70df14d1d4ab959fd. 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/ITR551413440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0efdbcc9c80b4092c1aad9b385ba026e21864987724022870331b9ee174072d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITR551413799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d4c3fc1b9e8180ade2d6e9c31f1edc89628b053a18d7a63f7c6e9b175137c. 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/ITR551413492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5028d7a4e56028a5fbcf5914b7f6458d9c87961a2f47e91b9a421b6c6baa832a. 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/AUIG01405940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec7b2368da6ae782acbd471eb9a80ca90b5d5c30d1735f93a7b0382e3f2a690. 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/ITR551413205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449fefbd98b18c8e6d588e270d20f24c10448d7858429b6a825fd2caf7965a15. 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/ITR551500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afb43f7d5df1529ce3c8027d615c4fce295e466d649a687a901c5b74c2fb5c4. 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/ITR551409451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74f1443c435b8dbcf5fa6e883c7ebf7fa71d9ef8a799c0e32c6c1eb6d3a121f. 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/ITR551413436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0efdbcc9c80b4092c1aad9b385ba026e21864987724022870331b9ee174072d. 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/ITR551413799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88b5033adcf2c21759114a9563ac09b34d57f6d5afc32f941eb35500efced43. 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/ITR551600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec7b2368da6ae782acbd471eb9a80ca90b5d5c30d1735f93a7b0382e3f2a690. 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/ITR551413205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6816e7638e5c77d39fc12adf0260343ef16345d05db2a4cd5e107463a1180ec. 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/ITR551600156.
Cafè Marocco Best Mediterranean World Music Vol II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e9981ab7f1d537e6d857dc4e68c3c672e3ac494bc3462e74b5a1c61d4f5542. 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/IT7151385707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46477c49aee7927495893ff265e92ed7535faecc723752f39147e51a85f9be3c. 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/IT7151386258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96e1c8a3d09d01ba8199e719191cfd1fc04c1015b1636bbc68305a09c462392. 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/ITR551415203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ae6a530f5ef888e1a0ffe39b845993891ec94eca75cf80f51e2a415f0cd9e3. 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/ITR551411265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda8b107bfc2b1ff0445e03ea5da077c02118dc31eed0d517f3eacb6e7c8d87. 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/ITD870913704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6dc22b0ac6bc9826d743c4fde39c883cb275a39b6bb8da3ec2891a39811492. 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/ITR551413433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e689d7391b09764e98338be097447902f71d53cdd2cb0d462b9443e10a215ee. 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/IT7151390299.
Classical Violin, Piano, Cello and More!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a88c6b0691766590d50ab854649104b498c9d74054964e70df14d1d4ab959fd. 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/ITR551413440.
JUST THE BEST MUSIC VOL. 4 Tango Compositions from The World
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5028d7a4e56028a5fbcf5914b7f6458d9c87961a2f47e91b9a421b6c6baa832a. 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/AUIG01405940.
Venice In Love: Romantic Italian Serenades Music Collection
SPANISH SEDUCTION Music and Soundspheres from Spain
Just the Best Music, Vol. 6: Sweet Lullabies for your Pregnancy