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 0x404e00bc90d53580520296781c93177305e26311f1b789205a530f8479bc9ec3. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e62d72b-ba7b-4ef3-8b6e-cdf95953fdc3.json and https://artists.proofprofile.net/proofs/artist/8e62d72b-ba7b-4ef3-8b6e-cdf95953fdc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Surumakalezhuthiya (From "Muhabbathanavanodu")
Surumakalezhuthiya - From "Muhabbathanavanodu"
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 0x5a139fa26901e4804d7aa712a3dafaf41b2a19613cb5c3f29dc34a26a3521475. 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/INM252232687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f9d18a1f61f28b8f9f3874bea78c1d102d317b207543412becc88436b8ef21. 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/ING211002230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb27e7973cfc17a76baee8c83844a039c5f5bcf49613f96ec64218dbd5915558. 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/ESA011689286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4910b17271d6fb87b83c345edffd1e3c8fc75e93d2b400ad5d635fda346e998b. 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/ESA011689287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd8a99b411ffeb67edbfa665be5dda64bbd4e0652dae660378b188115cd0cb8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ESA011689281.
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 0x6886eb2a9c58220c4431476c51f986fa7835bc57647977486418a4f6d73c95e6. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ESA011689283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb31442357e3842aa4450c8e5fcabbb8ff755ba3e2159ea5bb02d661a4d3c4a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ESA011689284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122027b1f526843e64b34f6dcf02dff8dbda97cf4e6165c0e7b702b269f46bd1. 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/ING211002300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555b40e29099e71f5e1d75a59c058df2fa6848b2bf66b825d7761bfb5674820a. 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/ING211002559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4249ae28d8849ca2ab5abe859275369e7022675fc1b32fcc9c7e57b861aea6. 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/ING211002957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f921a388aed3ef2a8f3b1b8cac9182792375c6e5d7507af970d03dec2c4c3d1. 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/ING211003302.
Ummayillathe (From "Umma Illatha Veedu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaea060df4739fa8dcf78307ace125699217f8ff4d2f0e9ed1733c85c86c96e2. 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/ING211006913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe476e8cf367680c02a39c88891ddf57fc176484403a723a5b4792aa755fe76. 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/ING211007040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d848d3b4034e117ca40e3a779c04a3c05a342e699dd8c9de1ab6a45f6cfacbe. 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/QZMEM2236017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb8758b2d1317d4ea4d189bcad1ae40253d18e1225be74eed4b8d699885a85f. 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/ING211007000.