thumb|Manu Militari photographed in Montreal, Quebec, Canada at the Ahuntsic/Cartierville cultural centre. Manu Militari (born May 21, 1979) is a francophone rapper from Quebec, Quebec, Canada. His s
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 0xc7e0773c6b8645f0b3ff4941ed2e9fb2943ed241d08f2bb88167ffc2f0fd167a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b98a501d-7b19-4931-b91f-9739c6a849f6.json and https://artists.proofprofile.net/proofs/artist/b98a501d-7b19-4931-b91f-9739c6a849f6.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 0x18cf1948a5a537193fc8759f6bd223a7cb2e9c5525846af180dd1151fc928467. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CAJ620620005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0a57bc443210c1cc3277bd8e83d0cf913ca525ebf27c6d2aed1bea6656c2e5. 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/CAJ620620007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05003fbdce8c2b61d9e9680a0be31acc983e2ad131c384f14a7262b0eefffed1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CAJ620620008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a3b5de5340af44341bc7e1351ea7f90c84c2b155208b02e30ac06d025b130e. 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/CAJ620620011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21be5a20ce1528d2773131be8de7663e8e8d83e254b6c7c0c3b2a0326014e9e9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CAJ620620012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c8a5ff9303604fdf7092f1ca616675516b2aeee67ae2cdc0af5e749f2317ad. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAJ620620013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd4fb3c83e230c545b598a5d51b91170c4319cbfdf936bfa0c87785fa46e6be. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:25Z), 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/CA0U30900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96aa6a338750f992273f308adea4cd0adc221cc6f117ce13f1aeaeab5a683bba. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:32:08Z), 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/CA0U30900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c0882466a941747dab84fbbc4d0355371b29051c2a1cfa28ff5654ff037a57. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:34Z), 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/CA0U30900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49efb077a3e5f5029517b9aa51ef644d611d0cf9329c1b5a992b348ed896f21. 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/CAH681200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c871377768b288f2c269fa4e4f8fc5fc05bfb847e08241fc3c13f7cf2354a77. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAH681200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67efc3d7656e9eeeffd78bddad1a517586a357cee967752d398ca398d5ef4d57. 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/CAH681200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528ba1b0b1bd5a0f70848400223780d9317947d58b1b5e4bd9829a270fe15c6d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAH681200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb69990d8bd67dacb5d9db05af94721395917fad602bc0412339fbda80a615d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAH681200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350740c3d34b314b4969894b2d366a923cb938d1999a861c7bcaba18036296a3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAH681500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34648e9854a97d59b38718c8162bdc988d4bce24cdfa4cf080ab04f91fcf2ea7. 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/CAH681500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad95b8d401ffc862c1fa238b44d53f6fed9e895e1ceb7a88aa7dd0a4515655e3. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:53:43Z), 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/CAH681500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34fde2cb9976a0202812ca4bd900a0cea103a48c4338866332d674a1ec6ae8a. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:51Z), 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/CAH681500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf51b520fafd0574d6859ad0a7d251a4a8259276f95d49fbf9c0119f933b1f6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAH681500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63593597f143edda13fbd28d1e8ff410e6e1adc4953fe6dce784b0219d151533. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAH681500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3d155bbb2baa492e5d705959ca1c202bbb065fb8dc4ca42531532619afd9ea. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/CA0U32100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce3984ab82f4a3173b1383a0a0c96d3cc33c5d788d6dcbe4347457b1851da82. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA0U32100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa539636777212941ec746e21b569e23d8da14d909f7b05c1c3905c6290dc20. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA0U32100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e0ee59987d953566e131265bbdd73dfa5d2f58ee8194428101975f67d348ab. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CA0U32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b29387a7544d7d117ac42857873e64a39bc6d40306d88015b7e500647c1c6cd. 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/CA0U32000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4ac3d890083c749e1ea92fd095be8950a9e24618aec4a5fb904bffa57e58bb. 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/CAC0C1300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7bfd69ddabe8264242df969a489f76aaecbe3778433520fb8a7c01250f9f05. 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/CAOWO2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eabcf8d9d948e896eb3a6e2b47cd333a6213ce85950b4a782237a3e1f7cce8. 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/CAC0C1500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded000636da574c703bc0a01b0621bfca8d3602232a2ed4bdefdd4a37b533c34. 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/CA2WV1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1650b203ca33c13194042130272f3f00c17c26a72951d8ebfd03ce317c6e962. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/CAH681200008.
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