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 0x7f11ea3cd83a40d9feadbca416089897f805437d5a562db8ca5af0887bcab2d7. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44cfcc95-afb4-451a-b278-410760511bba.json and https://artists.proofprofile.net/proofs/artist/44cfcc95-afb4-451a-b278-410760511bba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Augmented 009 / Ruben Karapetyan (DJ 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 0x3263a7076deddb55e135c2da07bd105e83bba4fd9753ce7f1f289638ac92b38f. 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/US83Z2234539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe456afb3c309b7d28c44794799cef6d8734efe4992dbacd76c71d65421cfed19. 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/GB5ML2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ad18a169fcde967f9a7c4ddfad1eadccea378df02e6fc7b41483cf852781b8. 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/US83Z2234530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91a3bba77d917ed0136c3a8ef17d9096c9e0c3b1250a177a7cbc2721f6473aa. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/NLF710902894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb10abd8ffa3191f2d82970b1fa92879ae511e1cfb53702e3adb6399710658af. 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/NLF710800559.
Progressive House Mix | 2023 | #19 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700bffd1e709a48a6bd9656d222fc05bce84f5372284d09ae0f7e0ed043b5c64. 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/US83Z2319270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec64a1bc464c434ccbf6d9943370a980142ed5e33743fe1da0c1cc6f34b17c7. 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/US83Z2320377.
Alexey Sonar - SkyTop Residency 289 (DJ Mix)
Mja's Label Mix - Mango Alley 2023 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8427847370845efeedea55e152fa740973cef011f9d5bff0dc0b23ce49a96f4. 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/DGA092415867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f20f6c04af9aad7578697a76c54ea5ca9199dd9aab5104583e2af4a4f301f1. 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/AUXN22495640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb7e32cd8d3b6543e91f64e9c105921909e77e97ac5cc8a06838efc08d477f5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUXN22495639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4750859da346508c753f588e4a45e31319b6321f5f4abb002f058fc078956072. 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/DGA092415881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90a905e7749bd784b0c369627d522ec2bd739e1197194484e760baeba822747. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/DGA092415880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087ceccc5e627b313540a3a1bde52ee78b6c785166e24abfcaeb73cb9b39e2c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z2520164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c7fbe01a53ad3ca03ea3367ae40ddc0cac9d552af795a6b4ba04bbbfe19c9. 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/US83Z2520165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b97448b8c4fb99c73a5a445e7e04b2c3d6f27c4d9d891efd8d5cf1b0637b541. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US83Z2521634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6c7fbe01a53ad3ca03ea3367ae40ddc0cac9d552af795a6b4ba04bbbfe19c9. 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/US83Z2520165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbb4d253f7ea6bcab92b2d2e6f2a1cd95c43d42524acd0bdf893cc2083f12ac. 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/US83Z2513338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a8c21046e60cf70b76bfa4fc0ce82c27a2812eeea31155c65cddcff52f5b87. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/US83Z2519259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9159ac0e37125173b79d45e24f31179f5de0640d3cc63734c8178e2e17aa5a1. 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/US83Z2521490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddaea4c3b5924d3515c8c45d309dee33be594ac261dd7392e141736a1cd6fef. 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/US83Z2521632.