Madredeus () are a Portuguese musical ensemble formed in 1985, in Lisbon. Their music combines traditional Portuguese music, fado and folk music. Madredeus are one of the most successful music group
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 0x9474525c53643614862c0ca3686a7b070674a9f24e050f6bedab4c615268c321. 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/53f00038-97ce-444c-a665-03506e18e965.json and https://artists.proofprofile.net/proofs/artist/53f00038-97ce-444c-a665-03506e18e965.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 0x2f31a18de6102f6318c73968f2a3529eee16001627cec96926017c71d15874fb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/PT3CB1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda857219159725ffb20eda640356e0345c99a99e22b8486b538a56ade2e5d5f5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/PT3CB1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfd976b8a94e41b1db7be48c14ddb6274fd47f332b32e25e68c7409977fda52. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PT3CB1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e15118f3001c10c8a74e58dd26e8cd92e44a62994445cd8422833a617c4f83. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:10:36Z), 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/PTEM19000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1bcbc3cfe45ad9feabe60cbc53ad14eaaf8938f8b52df18200c6ee4d764e6. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/PTEM19000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0516b50abf9dd1617d9abb41d4255337adcaadc4b06b5209a9e257060ebf206a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:45:16Z), 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/PTEM19000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd774c0a975b2fc6fb7a13ef763d9a353c0f3b0ffd63164b989c36a6df7d1a6. 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/PTEM19000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1732a7eda42654f6035756b4d4570e93e340320d9782a5eef228d044e96b9787. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/PTEM19000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332605deea6153b35c1be26c70fabd84c19ef0b2a151140eda1bcc844b3ae322. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PTEM19400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880815ca40bbaf9ce30844af94c706c1b136efd4053a144db8a5e2e82476b750. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PTEM19400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057a9f4bd11fa758680e690a588940954eb7a19f0d7ebadc684faf4524962d3b. 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/PTEM19400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13657f938bfef1d99df385151a7a63c34c54ce1b8665d4f90b8466152520775. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:06Z), 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/PTEM19400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9069731d5e32b6a2443fdcc3b87e0121a0ab7437de225614b4d835892c9d4c3f. 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/PTEM19400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592492d9d8b6bc9a355dd420baaa107344395a7547049c28b30955c1eddcd59c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/PTEM19400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795369d5fde9c2ed51ed814629b5d10d4754b770fec234f93baa716d2a117a89. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PTEM19400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a5d3bab8cb171b32f9dd877b7835f93269d2ee46b8b9be83255340167b81bc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PTEM19400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e872b24d24e7e545faecbcd123e0a862ba7eb73b3d114d957ea344a099195c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PTEM19400041.
Ainda: Original Motion Picture Soundtrack From "Lisbon Story"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6ad3d5a9d83d9d4465765701751280a87220a1fb4cdb2de8af10dc564c81bb. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:06Z), 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/PTEM19400005.
Maio maduro maio - 1995 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ac77e294e4378b47b940c7f25d393c2b7348dd8a3c473606479825106181a4. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:58Z), 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/PTEM19400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ef36535e951311e766f285d2c973351f999a3dbc6c2bf8de49851bbfa06183. 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/PTEM19700117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3954a68e4034a03ba1827ee0e159c47017a4bddf61427b9f2c9c0062d46bc8d9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:57Z), 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/PTEM19700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c878afd0098dd1c01e82cd36296911d6736844d06704036cdebf6af848a072b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PTEM19700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e465d24646b0b3a965090cdfdc06c85fe8e82af8cdf4c5f2da62eb3ba76392. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PTEM19700122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c320f7aadcc2b9727309fa396ce7d64d03ab16ac77f5905162b81231a5b74c2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PTEM19700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00406e286ca7145584a3ba452cc892dd8bb421992512d5d4c5a1523f2bef2d3d. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/PTEM19700124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ce7ae9f1592b16c630e9acef54949a09aa5d27a694ff2c1ac64576cfd47646. 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/PTEM19700127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58dbb76a01f23a30b591cc5a76b67a29df6dec48b9dc6418d7d65213aeba970b. 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/PTEM11200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe371089c741528b4ebd17deff7e9e5f1e71fe1ac6753399a51ae3f21e39a7383. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/PTEM11200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7017bb487a0c3bcca8ff0b6e52fba3520763cef521a6c2991b0866a3cdf10eea. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PTEM10000179.
O segredo do futuro (The Secret of the Future)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336ded06cfcd0bed8dd823cff706c60b1cf46ded02b699ce7abebf26b859ba71. 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/PTEM10000181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae293e55b77fba82129597e6ef2bb52cfcb2f6ea7cb803a351879abe843ae587. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:50:09Z), 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/PTEM10000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf54f964e96c2d24ebd160ca5711637e5ee015b9c90cc89aed9982e9e7e0ddd. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PTEM10000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aae62abaa11f7a41c3cd7c9f96ecb3bcd0c91ea35c3b7cd13fdb9d653806bc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:42Z), 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/PTEM10000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92072f8ce318c2669ea90d4a2aa0b9f51f06b46503388511cc3ff90c9d5155da. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PTEM10200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76e2835c25bffdab4aa804be5611885111d5b0fae0a17ac32cc19740e2880cf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PTEM10200023.
O sonho - Ralph Myerz & the Jack Herren Band Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6093c9af061c19265a9dc2309766650f5344fb0dd677482d1e2a49d64f60e811. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:51:01Z), 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/PTEM10200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59eb8d780fe7496fa7a74a1b8acabe20632f6ea06f79ac14405bb5494ae1a603. 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/PTEM10200029.
Ao crepúsculo - Onde é que está o meu amor?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fc70f6c6d32f4248f5732b639f0c97bbf4bc8955563c94e4fea80aff833cfa. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PTEM10400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fffea60dedc117dc184515c328e3af0085996452114a2b9aeca571a79219ef5. 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/PTEM10400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3bfece7cd5244f4e7b76a15cfddab349de7c1a3e5ed2a0960943c25716c39a. 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/PTEM10400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119ead224a11cf75d4f91adba009da30f07c09ca5c0f17d0913c7f74165b3df6. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/PTEM10400109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f1935d7f474b0ab3c869fc053fe5189c08138338c6c1530f90cc0f2ee02aee. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PTEM10400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5216fbe252b07d4a1494a83bef49f24c9b1da8fe3665b57d940db23e9317ad35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PTEM10400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebb955afeb10445ca17fecac8e7281a703001d10aec585b3173d36b428a2b81. 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/PTDD11500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5905e7ae220f1c38cf9350d8b498883afd48bed17ddc556689b4265d5d1dad39. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PTDD11500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc99af1b0f5648d8c7d7978850fcf15b36166b1e6aa2b30fe672dfd3a8e074c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMBZ91528636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e4035b4e7cc81dd68e94ceb3dd41a2604befa04ab87acc4a97c0cd6503d42d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:39:45Z), 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/QMBZ91528638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dac6799debec97905ee517f5b7785dbea709a0905a32fe0690af71740594fe2. 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/QMBZ91528641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5839c8d51394ec81ab670a33a2d2ee89a36496b4ae3e1ba0ffd2ffb28249962b. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QMBZ91528647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad3e9ab19fa82620dd3c67557b1e51d6e2a9d2758d4c6214c86559b6f374a6a. 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/PTEM19300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d5b0726ee61f9c6fa4e7dad01063899a8862032d9f3e770d1b8991af8d2cd7. 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/QZH5R2000093.
Nelle paludi di Venezia Francesco si fermò per pregare e tutto tacque
Santi e malandrini - Angelo Branduardi 50, L'Anniversario (Ero un ragazzo, ora ho i capelli bianchi ma "Il cuore ed i pensieri sono gli stessi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b11b3df4502875c119ab97fc078a62d3e03a6dad940b46445a440bd7cca7b23. 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/ITP951200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5cea465f44e01217b3a7fcc86a4d7a2b0dd9c3f1466b0c982f5cd4366fd83f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/PTEM19700001.
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