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 0x4fc843aae01f5f1be7604a2374a6a73f00fbe5aa08db63d080e727760f0f1eda. 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/7bcc79b5-e761-404b-8771-49ac00af8add.json and https://artists.proofprofile.net/proofs/artist/7bcc79b5-e761-404b-8771-49ac00af8add.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 0xdf8cfee44661405734b27e6f3a1d7c52e9ce910d620fbb8f5cb78d236ba6056c. 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/SE6QE2280715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e19dac49d7735c1b8d6365a74f3f015f797b233c311064ab58bfb6801167be9. 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/SE5752240975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc61db94a2215fb4e60cecab0710b167c611a5fd76188cff160de1d25893e93e. 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/SE6XX2174166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b8156abd422bf5ba949f32755c6c2b2a26efc59df15b55f6dc22d4a4aff5fd. 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/TCAFS2189165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeda4aaeccab72e51b37bdf5ece7623b0570ae8d7922c34782694b2e1945e315. 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/TCABM1301991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fbe2f21e4467fe4330336ce33ff91215c25713ede7f1f0aad72590747b3257. 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/TCABM1302012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78423ad425c577d3c0f1e2f56a097ececa7cd3c2ff970810f46668ab9425efa. 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/TCABM1302014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc789664bbc6d30f7e38c991a5842cc3cb014d129f8b35637a4b92ef5e15703c4. 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/TCABM1302015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4c648f10462c54088ae286cc6367667bbb82c5448455fb2020e6c41c07f6a0. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/TCABM1302017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddf9b0f9f7a26b0519038832b2e7aa6d6267878455fdf86d4169c8d954d51a9. 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/TCABM1302034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcc267abd1d400800d5efbc05ac94f44a24ac3c84d66881dc4aab84eb2c44e2. 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/TCABM1302036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedd71c60ef0c341443e8bbdb5a073fdd0ec08fd09349d13cf8e25fcb31ce2b1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TCABM1301994.
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 0xb2ef1bf799281cf0f30cddc9c923df1016c5c92161a529fce4d944185f0d149d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCABM1302020.
KILLAS (Ritmos Yunque & BaboonEstudios Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9fa4162ea9ea9204437bc29b0528d475b0ea3702f282a5ce0a36139cd282d6. 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/ESA011789775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac09802833bcc6fbd868eed36bc5432c4f6d1827cedb7aad79fba066ba910888. 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/ESA011871483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4346d7d1d62b09198c68a59dac1074d66717c726d652a33b159fdeaddecf448. 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/ESA011866363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9b276363b2283908feeaa7694a66147a41ad444e8a5c2f32be5051d8cf20b3. 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/TCAED1940301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44ff762aa0c68c7b53fb0dfabfde07c00c7ea7612cc303717b981fc4b8433ed. 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/TCAED1908129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc462bb014b0a1bae6c7f3580b312c738bbdaedf4b88d02f4aecd923d5f963461. 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/TCADL1811682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac11b85a2df8ee349a8beefd44c8243d67818d1f4f8bc923a9e5f3bcddb9af10. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/TCADL1811690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6886fa0589f306dad5816dfad3e4bbce9b5973f4fb74e4396de70d2849bc3eaf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TCADL1811692.
Km.0 (feat. Marotone, Charlie, Juancho Marqués, Ceerre & La Tapadera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb368437d21f575f76b31e296517b13ed9a407473aec2653636aa978f724283a6. 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/TCADE1736366.
Hey Playa! (aguanta) [Alternate Take #2]
Hey Playa! (aguanta) - Alternate Take #2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92629bf720b7225c43234ca9615162899a510246bb187dc013484b7415ef3d6. 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/TCABF1229527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46958a4b11c5d19ab477b6e638a425a0fb7d3af4ac1f5240a8e3989add482ae5. 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/TCADQ1843485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82e50f1d2c3cf64da2b9683a32c904dcf3bcfcc26c52c7064e6645d54e043bf. 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/TCAEI1907711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362eea0582f85b19b593c16049ac8872d2813d0dd35e55dd7943f6bf9d6c460d. 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/TCAEG1914587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe514759d11c1eb4b596834d50562e09c0a005cd881ab0def4c26872476106dd. 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/TCADJ1772885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9458e3f7e7e2ecd20e191a23cb1edf5c1ad399230ecf65b11e7d75d5d88212cc. 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/SE6QE2170447.
De Principio a Fin de Mes (Manifiesto 2)