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 0xd531cfa0454aef0809167a010661d59b800124c41e58ee3f98ae81405c632cb8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/691673ab-8031-416b-9eb6-cf03324d478b.json and https://artists.proofprofile.net/proofs/artist/691673ab-8031-416b-9eb6-cf03324d478b.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 0x9ebdd2fe5c2fb5d72fcece41203ebcac98898eb057e01b502528e84cf3ce0a66. 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/FR9W12215739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82febf50ec20f35544ca514779acb7096f3eebb49fff31b8f671d120e67a0826. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W12215746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648cfa37c7bccd23a2cb1c8f8010fd0c9a571d6a388b68f06b3a26604cc750e8. 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/FR9W12215767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6632a5c87df9f4f4b55c396f64b0b2c4ece8466586be95bc4390361255e831fb. 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/FR9W12215766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1f3360652ed217329b7da15645ae8423aaa5633e16b162f32b59f39d3b7aa0. 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/FR9W12215765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1189c28ce6397dee8f4e8d92def4ffc3079c08c03ba50a416a5bf60264d8e4a5. 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/FR9W12215740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae33d77376fa91d9b8fd380e9cf7736abbf809ef01bf84ebbc98c463d5eb988. 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/FR9W12215741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bd4a6236e0722cdcf4f8f02b0fbb78f9c0e8713fe2e73fdd7a7b787bda49b6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9W12215742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ddf732dd30b220a0ab792d31fed8753744d67c725d715cc01b29cf4f095e9c. 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/FR9W12215747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd29cc8e22e4dec12ddfdd805380abff6866b2db8b95567bc8a960491e2bddaf. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR9W12215748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7642bfd32b92c754adaf603ae4f4ca1bae95af17bde964749e47f3cadd5ec0. 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/FR9W12215749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7ff1f39f6f81a1f0923caacee0beb20ff9ab45fe5b852a365010f96a4d9e7e. 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/FR9W12215745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a5741fc419174dd2bf528fb8056b5fd5fb58a050b121250300e64a20ee9ed4. 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/FR9W12216095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2e4dae4e499d7dd19211dcd841e13b47979f32f8927bbe3a078443b142ec8b. 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/FR9W12216094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb808cea6056e65be25d85261965a209173f0d5b80cc3ad8b0ff6370d2477266f. 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/FRR642200138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4da9d95893f99f072794ad967ad68b7a29def5079fd3216ad79258174620796. 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/FRR642200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a82a2b392ab93ae28449725817f02802d9bea4f11feaca94644a5dc8842e41. 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/FRR642200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be56f639695baf15abeb262e8ee67387a4ca7d8ee2bc822f5c3a285ff3455d5. 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/FRR642200143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe725c2cb8083b3983de76e2fc260f5653c3b134106cba5b77779b1efaf2d644b. 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/FRR642200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c242401b2be6bbd15f10742e2ca500760855e80d98036bfc57949def2d9838. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/FRR642200144.
Tristesse originale (feat. 99, GG3 & Har2Nok)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7583759d7121427255f27b81c4a5df61d37ae8d4cabba6b389649576e2c1ee0b. 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/TCAFY2143286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181e6b0de7021c67ae81d89e38f33c63c7dbcfa9664bc75a4334dc65361429db. 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/TCAFY2143431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a89fbd0299adcfb805168344a9fda07a2dfdae1eecaa881cfbed3c4a450c31. 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/BEIM71900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd9b02c345b37bda3abc30971c9ced3f7724510ea4127e3f52b2ceaa041372c. 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/BEIM71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca531fea4f0874889c040117b30297908d448efcaa0eeaf9ae2fdb53685d66f4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BEIM71900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb816657beb37f7c21d11e0b016acfa0dd75b9ff8f577752c8b434b5bd66a0d8c. 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/QM24S2206241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219a5a3fcde1fdc8613bbda945fbc142a2d569d98c1eb2581945f090e0e06fc6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR9W12130832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88dd7728b8b136260ceec2821681c6ee9ed53eaea1e7aa3d20168f3b641ef9e. 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/FR9W12130833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bdc85dbdd59b3f7fcd57912b0cef72627d0b2ccd8b471feaca235a2ecfb2b5. 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/FR9W12130834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46600bdb8bff1e57472ba21f4e9fa2e24dcfd7d30e8d79028488a13d9e731c5a. 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/FR9W12130836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2a4652ac401d80faca05a60c9e89a68dc385de64b0d5200ce973a133d401c4. 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/FR9W12130838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c96ab292dfe8119a31ad03d906f6ef500c7ea8c9d2710434af58fb36ae0b54b. 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/FR9W12130839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd2321ef519bc54223acf3b5e6b8cb92e075986a34001959f0b160d8d71b88c. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR9W12130837.