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 0xd82051fc0a6595da4234addec35a8539f30de862649c16756a5187eeeab9ce70. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cf58b2f-da37-4ef4-90e5-6469e153319e.json and https://artists.proofprofile.net/proofs/artist/5cf58b2f-da37-4ef4-90e5-6469e153319e.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 0xd2dcae9ce5de21d4e2475f9dc36d08c5fe2c8e19a3199d58416d089a5112aeae. 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/TCADZ1885345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df247bcf40d588ff3a0aea1b40b26def7eac83b4e4f74438a0b55563bd87dea. 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/TCADZ1885372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee49b4e0eba99a2633b662da6a00b6e77baa432de16c88a29608ac79433e01e3. 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/FR9W11411091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf688557b318bbabfbc64c0db7b34a5cdc12013ff854a7949fc4c4464e9f6ba19. 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/FR9W11411093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd02a34d17a2402973040d561b98f2d3b6c51085d7b37359b9add14a34e633. 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/FR51W1200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e30b4970002bdac8c3ff41dc02316365288537c8a5ee5017027cf7eb634a0f. 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/FR51W1200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca7c5d6f0c647a756ca067cc48eb8b7608f8d0d02f923e89e201ea34f24c688. 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/FR51W1200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cbd1d2cad09fa882f1fed557b39ad3ecbd473f3500eff37dcdf5cea62e198e. 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/FR51W1200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ef4929e6bc9dc073dbac52cda6b85eaad452ddbeee1c4387d2987a5032b855. 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/FR51W1200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8387c577ed4b2bde76c95752b750517bab95775b5f4c29538013e0bb862d8a7b. 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/FR51W1200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98613f6a0f7ac2fe299c824f156e41b4943c2c79462cec15ff529dcc9e10eb86. 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/FR51W1200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0a52798addc09493558e6a782de804452a216138efdc74ff99b6ab12f9b626. 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/FR51W1200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95c18d2ae9160e214f522aa101fd44a468207fc309d7713b3379f9b9819654f. 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/FR51W1200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b57bdbef7cac83fb7632de630daba5e2978a4c5dba685752c2fdb7088be24cf. 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/TCACS1657316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04661058bd8919562e89b9d3ee77cf78d1f3fe90def16a7e8f52bbb9976a1350. 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/TCACS1657319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528530b0080644c18e14a99c8c7f6bd4f1f4886ac9e20c08bb229536d1c1e5cf. 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/TCACS1657322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42227e5b0d95a7cfc82c06cf1c93598bc6bf510c515901666a8f1d385251543. 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/TCACS1657323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f3aa2936ec59f760d5536a82fd4f6bb669b22b95885db4c7aae4a9470fdd94. 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/TCACS1657325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288e81abd785c03cf6d21713f6dbae65bb24636b84a593c0de5f8e5c09ca13f5. 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/TCACS1657326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bb5d75348a7aa60612a47282cf3df37f05dcaa39183344f7f0b8124a01b272. 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/TCACS1657327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d40ce290310d2aa637f4b4ed1da6d7a019d60beb7cb7fb1f0b1db21194af94. 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/TCACS1657328.
Le Singe Fume Sa Cigarette (feat. Nekfeu, Alpha Wann, Jeanjass, Walter, Kéroué, Seven, Ysha & Senamo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa700d7b4062b06ad275963f7b8e6fa221ff10c46fb9b0975476d4a791c622e40. 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/TCACS1657329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69be58a4ba6e956db3573c4126a2a5a17c6cb1de595e0e720e63d4498c52fcdd. 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/TCACS1657330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6441e681e45af7e5c059b5e354810ca6e8555a46a6c78dd1ec40761c048befc2. 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/FR9W12345686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fea60a9da546132483638b35d98755e33ed4b6303e812302b7bbc6a76e8dcb. 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/FR9W12345688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12fcdea8d26905040dd3749c5742a35f775d582963a00cee1fa4bf411c7405a. 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/FR9W12345687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12fcdea8d26905040dd3749c5742a35f775d582963a00cee1fa4bf411c7405a. 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/FR9W12345687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa29d2a25a0cb7223338b811323fc705064a1c5493fd4f240198d330e3d81fe. 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/NL4NL2183039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0dd5e84765e77698e172cab035f1a616b5eb33baf6f8e677462a25db344414. 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/FR9W12143467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22895572025663396745f729da7e38f145a81d162b0456058bfa13d8cad198ba. 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/FR9W11609193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5a0959f9553da88bb78ff54d340128651bb11cba253042888f1d0d260a38e3. 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/FR9W11609195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62db6ceaa7d55e7d9beeab1a1b92c9c0fb52e6954fbe4a2c7de7c43e47c50629. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FR9W11609196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff73b15e46dff1b620eb9c57c9500433dff10f58ec83660830cf5681f9635df6. 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/FR9W11609197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb365696534f19584c458ea3e09e43a929e8b1d3bf8792c89d6db42f17861bcc6. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR9W11511046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122f73e31df0de74c8cb6a036cd7789734af78501573b03383b9ebab2d77b7e4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR6V81652789.