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 0x0fc2295fcfd41e957553c49f5b2cca0dee63e6db905319c0f4cf6e4146ea10e4. 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/d02a902e-0249-4292-bf55-57e31395a770.json and https://artists.proofprofile.net/proofs/artist/d02a902e-0249-4292-bf55-57e31395a770.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 0xf16616f80a4dd42143d33309e741b7ccffa311409628c1bcf03c2510815f14a7. 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/GBK6Y1110002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f96fb738932bdaa5e8d3c186f01b9674e19d42ab5d62ae82ab6ab8c25fbc05. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:00:10Z), 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/QMGMW1500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81c5e2bec3b3bd263b2120f945a199f3489aa34af691b46677443b1dc5b362e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEU671600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb0904727ed63349f081660a80b9699111a19352c581efec335916cf92b9ad7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEU671700165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe725b1613ca70b1ea248cded6c288634afbccab6770be74e1b1c964d117bb58c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEU671700164.
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 0xee1f9c92d3871318e3781830fc2b5faacf5d22b12e0d3faa99e3debbb12b41a1. 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/UKL4N1700290.
WANT - Danny Daze & Shokh´s Fears Come Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c9a79a18ed4476a33b8013f95a5f8ce1ff0d767fbfa1037a3e81ee73cc7d9f. 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/DEU671700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089776b7cbf524b80955935f56d4b56efa7dff0516c43a6a8b46881bb98a56c2. 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/FR0ML1700480.
Karavan - L.O.V.E., Vol. 7 (Compiled by Pierre Ravan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d834545b5e4381a2a7985937aaf3dd15d574c8b845ed770135c38a2fadba7f3. 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/GBTEZ1100396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ca3b513f8ef3ee46b99f49a224ab8cbf5060cbd157f8c25e1cf3e69f93a6c9. 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/USYBL2202051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a6969b4ede9ba583307d027c2fc19cd5103d5ab8a8b920c5d78d22b0c88ef7. 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/QZTBE2373522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ca3b513f8ef3ee46b99f49a224ab8cbf5060cbd157f8c25e1cf3e69f93a6c9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USYBL2202051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e1b04f56cd72f6a64acf9588082a4cab523701d9203146ca2889cec4a5ec75. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU671700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05990b153cb9ba0555783e875c3250364983ab671d968cf68360a4d8e7c1f445. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEOE81710376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155bcc23b383c591b7a81feb65bf776510840f5e3cd316711f39d8accf05697a. 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/QMRSZ2301995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2e3320e17bf08820a2e144206621cd0a4f6c5cbd9a89c7dd8b06a08e33ec6c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/AUFF00500374.