Supremo may refer to: Supremo (film), a 2012 Filipino biographical film about Andrés Bonifacio Supremo (album), a 2011 album by Chino y Nacho Supremo (comics), a 1980s character based on Indian movi
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 0xb15173e8349d36b9e4a0f73e22b5764dfb78c8f53d83c5ebb4105a84f9b1db1a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf18bc0f-87b9-43a4-8b74-83fdf73d3db2.json and https://artists.proofprofile.net/proofs/artist/bf18bc0f-87b9-43a4-8b74-83fdf73d3db2.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 0x7ba106bd2a729ba5b70d9e224ef5a5d276906070bc28ef850603635aeb570f5d. 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/USE7D2000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7d4f665194816ca138b542ebf248fd49dbb6560d10307451721d50f408a57c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USE7D2100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd19908b8e60c59e48a8573803d63fdda3f1068c2f74cdf870bfcd91e8f9d0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USE7D2000224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cce057695e54119456fbf201bd2cb5455d69feaea79feb9cca073d44101663. 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/USE7D2000226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6a316308174763b61f051d7cb6ca4c0ec1077f23e7f3fbb160be1ebf0b3e6f. 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/USE7D2000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3867ac4f6d64560fb9216095e071c22d297bc7aa5a484081ce80cc7a54339459. 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/USE7D2000228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846bedc01f9ab451e41077943b314e26c0a043cf99ccff36894a8bf0330a04da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USE7D2000230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8316cd6d4e1544c8028a25fdfad2f3271002c3968a63609d3929c36ff054c800. 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/USE7D2000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caee642bd86bbe15e9b6fb1bf5662f937178da6c656a86590d4e41b8000b7f6. 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/USE7D2100377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13102564c0a01d6f1904be580e14d8c3a689e31eb915ee8c426a91f7316734a6. 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/USE7D2100379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9f908b22197efee2c89bb986840de7ec6a2c4120c8a7248623e56aad3ea84c. 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/USE7D2100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0866c4e1cd308a83fa8540b06aa0d7727433cb6c85b35962a8117acd2d0631. 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/USE7D2100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e6e43739fa3f91c827ab234d915dab8b5d454da0f0d701c59c1d52cf3829fb. 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/USE7D2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cfb022c9befb7cbebddcb758d3dc9b0c8d5642ec7a97f5543e84b79a3458cc. 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/USE7D2100190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0866c4e1cd308a83fa8540b06aa0d7727433cb6c85b35962a8117acd2d0631. 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/USE7D2100038.