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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe973cbb16409d9d86af671e661a42de880225b0108d4657e36b34e36326d3305. 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/f4c4df48-0e61-4a59-9816-a197f2d1aa6b.json and https://artists.proofprofile.net/proofs/artist/f4c4df48-0e61-4a59-9816-a197f2d1aa6b.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717c6c1a6f30e6296a8f97987f0154ac21a5809800888b1ff6f83018533cf436. 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/TCAFR2120120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06ba6343c81f999b72cf7a13cf65d9fde747ffc9afeb51a2a3c4c9bd71ea2df. 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/CAM460423162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f5693979b7fa4ae98ec6818f2344a8c07ab376675245c09a28a00c35948c5e. 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/CAM460412856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc494e6916edb29b0c1c4db7d8bd3ea33f24dab2a9dcee08b78aeed8c4795003. 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/QMVRR1204121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a18049aaaa6932ee522800c4d981a635745cd3b9f03b5ee7cbce51cd60494b6. 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/CAM460602236.
Back to Basics Latin Music (Salsa, Bachata, Cumbia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163236eebe8ea2bc3c4a2c2f1ee527e6e71f07f2b35a883c72313cf189623fdd. 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/TCACU1604511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddde2db49b9689ebdc47cb3d5728802d54c972167da8ccd971012e60f7afa98. 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/TCADX1860100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3008fe661f5f7842ed11162f9e6f8cfe0f3469958c0077cad5870ea5b1dbf8c. 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/TCACU1604520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07aa1ef09316204a77cf09c5651132876bb8d8c745bcac37d8e8d3c2edfb72a7. 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/TCADA1704937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b0cf61138565d5412412541702afe1702adf12709d62fd841aef8b6b2dc92. 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/TCADI1794563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd445c23899a7bbad6a0db54729bdf46230d6e7d14bb1c23f7b1545686a2811. 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/TCADF1799548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe541b49689a1ced79ed2b8c78791c403131e1fffebe094ee1c1ea2d1f6758980. 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/TCACU1604518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74db81e0db5730a1482f4ce8f282985fac94484d8288b2020308fd1dda40ff55. 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/TCADR1868812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0796b0db2459156ccf54bed1841ed6a1831e5d09bc554854cc078e96148b5d4. 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/TCADY1804899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457624d171d60ba78204be8d113a3f35d7e3f04d927aa81d2f222216f4ecb17b. 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/TCACA1484750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af6adb32ea1ffb05f33d5a686d4a821269ff276f0fff5064d1f26b2625d3fe5. 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/TCACU1605068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490b6ec538fed0db8aac54b8a530f3ebfb5560144969ff81e64cba7570faf959. 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/USRSB0800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2953cbf068e3ff2b7a4e7f9ef07f526362b56771caf6c666e649ef72ae609dda. 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/QZFZ61967558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fcd1bbea5c7456152a68a52a8e0b19426fec62bdc981d4fe5c5ac63aedd307. 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/QZFZ61967559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c731566f464db7a528a671796711fd81669231581aeeb86a4f6e45ee7e4c0b. 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/TCACU1604521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8be30911b7be40a2209aaf7bb15988a4f0440fde90d781f936fbf8f6ec02ee5. 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/NLRD52254139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872b436aa22afebc64cbacf671e06e58d88b1b045170529f839d24f1beebd7f4. 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/ES19X2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6afcc79a0966138bce58521fdb4d47a092dbafbe7ee3298b9ea2350e45f0420. 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/QZHZ52113742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d006a815c23bf348f8328853d9520096f1bed1b2cfec9e44c9d08a93d6db2d. 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/TCAFN2169721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37e2785149e8257bf02156ef84eeac25294769af5a3eaee798aa97f4ba8a104. 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/TCAFL2189915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cd38419007f769220984733d35129695efb99443de9a7d8c4083e8c1e81dc3. 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/TCAEQ2080037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4cffa14ab501455470f7b0d9c7298fd394c8ea62a20a6ca20d305777393a7d. 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/TCAEN1920230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7701fdf2fab2cddb0d99ecd09d22c5de4f2f330d295145bc11e6473b5a338510. 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/TCAEJ1907631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63a4f6737d72b44c7c6b96bb07eda80fc89926b1a6032205d89ea8c0b3ae3ae. 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/QZFYZ1975391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b0cf61138565d5412412541702afe1702adf12709d62fd841aef8b6b2dc92. 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/TCADI1794563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343af43bea381852772bda8b5a23499b9c725b72430823d09e53a950c5aa7f2f. 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/TCACU1605071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0a6f5377d6c1358db1d75356fb3d5ec61f2ef33997b27dae0ed89e57976817. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCACU1605104.
Me Puedo Matar (feat. Hector "El Torito" Acosta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0047167c99f20f40bef28c7f6dd2d268ad67f7d86d560d4d47161c39e4976a5. 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/TCACU1605127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3008fe661f5f7842ed11162f9e6f8cfe0f3469958c0077cad5870ea5b1dbf8c. 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/TCACU1604520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe541b49689a1ced79ed2b8c78791c403131e1fffebe094ee1c1ea2d1f6758980. 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/TCACU1604518.