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 0xfd9ac489ec95d9ce21d678a3ce643c0833d10e56be9f9ed9d1379d6a9af6fb97. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59826d07-ca86-4cc6-b5b0-eb0e7e596f5c.json and https://artists.proofprofile.net/proofs/artist/59826d07-ca86-4cc6-b5b0-eb0e7e596f5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
EVERYBODY LOVES THE SUNSHINE (Tribute Mix)
No Ordinary Love (Kek'star's Bootleg Mix)
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 0x62134b5111cc3479f6ce43effb838ffb47068d3beb0173b0efbd8fe73a4ccdd3. 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/USLZJ2439649.
A man who doesn't play deep house (Original Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e0582c4265814a5121190fc680524c2359cf93b9b113fba667658576222c5c. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:20:09Z), 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/QZ5FN2500191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2293e31843f494b4241feb4e3c6fb96b278a6f5f8349d559d99e14483e0adc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZ5FN2521155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59570f0e567e770b61972be8ef6b7562f0e9d8ff84ce159c010e8b5e38b2070a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:29:25Z), 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/USLZJ2544833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1838efebd10fa75f92bd47ea5d0a20ae14aff13b79950065d1effe41a5a350. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBRKQ2538411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43204e0d4316cda0122e48949a97c4c3e6f6c306261457011ee4b520e48747eb. 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/GBWUL2540075.
Dreaming in black and white (Original Mix)
Dreaming in black and white - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3598045896231c6ea1258d3cff5b07b543fa685b4be417ec0386ae44c1777ae. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:53:14Z), 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/GBRKQ2538354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15362ca378208cb1f7597f9caae4db3118b4ac4bf0ca4d0d9626296a6d83401. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBWUL2590772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d7a770c3b229add5f08ddc49972d96e99536e719d3960af8812f7fc63c5f53. 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/GBRKQ2501608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f390508213f65c85c65ae454fc12a6e3475f2999a7fbdeb9468d26cad228103. 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/USLZJ2544894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeb34a40f5f320d69615441dab89caed2464f492aefa481e705260c29fff3a1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWDD2560445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac26736e97801619c65750e4df77b955409f4aff0a52a772b376d9b5b5eb0b3. 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/QZWDE2500611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e2575c6c64ebd6643c76b308097b48ffebe2ff7db8337352d050a994a797ec. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWV32549915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c1cc7d06cdeb362fce27a6da326b9824f77ead028584274453886c218afc34. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWV32569693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3619d404f8ae250d1d5a88b7aa40ec3eb85b1de5f1789f838bb0f4e1581f5e8a. 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/QZZ8A2500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc9edaca7d0a0aa1609df0834d5d60dbe12a1271fea3b3d657eb0c6f5408e9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:27:55Z), 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/QZZ8A2561087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bf62b88a8fd080ddc8315b4065d13af759589bed345c9dae7e856122add54e. 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/QZZ8A2561105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6ca128a65c1016be51d049e5501ab51433aa4ebee33309bfcb71f2b1e03a8e. 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/QZTV32252692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b0a201e8525a32c0b26a26b8463f679822d615fa7eaf872107dca3a6f19c7. 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/USLZJ2376850.
Things Just Ain't The Same - Kek'star Remix
Things Just Ain't The Same (Kek'star Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b979ac21c08d387ed2e93167914cedbadc7ad0164344bc6c5bcfbd11c011ab1. 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/QZWDE2224381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3651c54f3db87390394231bd80036e500dd64c5688ace40254acff16575643ff. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USLZJ2376851.
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