Joaquim de Magalhães Fernandes Barreiros (born June 19, 1947, in Vila Praia de Âncora, Portugal), known professionally as Quim Barreiros, is a Portuguese Pimba music writer, singer and accordion playe
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 0x23ed9e386b726e62d83c55a5a2b046d48cfc6395fdb7fb0f463922f15e7fce95. 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/eea3c3aa-a4bb-4c98-b5a7-de1fc3789cd9.json and https://artists.proofprofile.net/proofs/artist/eea3c3aa-a4bb-4c98-b5a7-de1fc3789cd9.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 0x22ce7c5fed315048c2a6868ab41ad8d77164ed58f56446d7c192f47dcca3a334. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PTES18600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e17280209671df37a8556f56d60bd8fbf49dd99b9ebe397d3c29eea1f2ada18. 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/PTES19200701.
Deixa Botar Só a Cabeça (Acredita Em Mim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20e28959676cdffcd39063460d41c7b005951d74c971263036ba9cd3441acfa. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:44Z), 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/PTES19600801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a4f18c4aea3eab430c2fcd528d50853dc753756c80b1b3b80755f0a458c579. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PTES10003401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37636987c3350dd0a923bb48884e3ded2c408ea50e011d45be66d817fc9547c5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PTES10201603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67700d070589a0e6fd1ecf64f91e5693a07edd18681792393f9c17b54cea09c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:53:30Z), 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/PTES10300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f42344affc5fc8b31ed578fbf1ef2693d3f637b28507c8553da561cb87cb08. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PTES10300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb096c53ad31d69725147636a42877d958aea181d5819dd8ef174560eb4a90b9d. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/PTES10300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6311e30e22903ee7ab07e2e39b9801bf4e77a4b94aab8d1b3e7e3b4f6953f9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:43:15Z), 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/PTES10300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa5db9a3371492c0fcfdb12b08f43be79e50b969e2b60fe21697c66a2f8c78e. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/PTES10300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b7e95129a254a8d8968e1a65fd925364af60c2ea6e17caab4f79179ace2de2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PTES10300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31de344b5cca9d84283434d959e95906f8482dcecb3b666af38c3ba46e980a01. 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/PTES10300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52f5c0afb5f5ca6935752e06403e4ce8254cf30f97058c5f4dffced52b4cc08. 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/PTES10300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d3f543262725661765dff00910b9afb4b84898345098dfad081ee9870c8000. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PTES10300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9d4ec3a27abea620d61811ed8073e733c67fa45c034ca7900f1b69eeeb90e0. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:16:17Z), 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/PTES10400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f393522c1362461944fa32ec9180f3800dbf3d9032da3519d5e530f4b5381d5. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:38:07Z), 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/PTES10400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb260bb6e327d327884c5460e99de0847691940a46548cac2add171e519417a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:05:08Z), 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/PTES10400505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94490872e52999d0a004f1e4457790808c4146ec94303b1378cc29e4670dd62a. 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/PTES10400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f97096b1ae8aba6dc46e4b44bf9389550e5e9ab00cd36ebb8b96fff711702. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PTES10503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc87af46ecea819535ecb74426b151664e46931f83be2870640ece7e928cc1b. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/PTES10502506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0a5ce3dc8bf65ef46d10fcdd95566314f6e28ca47524b5e408de63c3d02660. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PTES10400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2701f95b639dc5052d5464e5a28026499686eb345bc7520987b39144a06b1d. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/PTES10502511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4dce028f2c3699631add103ee06f5e8333edf3604db425f5abc666bdfeb370. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:04:04Z), 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/PTES10502513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9565bca832c6714d7cfc8876f8878bae870173a4b55a3d0e19d52a15da3f0426. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PTES10804204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d507b0c9d316940d1f5fd5f316ef6328eac2df7a62dca43939f5eb5c397805f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:06:53Z), 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/PTES10803209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a67b9b5f14b2b1ba2d3611bed5ba5c1d092e07def18c4a5c1706c0eae755ee. 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/PTES10803211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcefb1f9635f433e9fa7c55da05989dc10c3c7103d3af59d4045ddbbcf7331e7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PTES10900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554e24607e367b6611453f561681289d032be4c42ba1eefb19e543e2be6616b8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PTES10900607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf844c5eeb54e5dd52fb4d699ae6415584fb6b710f6d45afb57db5c815e5c3d54. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PTES11101701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86fab85fda84bbfa85fe6137f55a311b965804be8be892e3956af32fdc432ca. 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/PTES11108303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e931805f4017335592fa515bca746f97a9f823688d09d3be3e891a70a9011a1. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:59:16Z), 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/PTES11108315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf174fe5f8b242811ead937ffc3f79c2c2c9eba95e604d484181939d0b1af6bf. 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/PTES11203103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5b2fab3d450532df289bdccd0aa89eb95025cb473c4e5e8baf1eb11997cba. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/PTES11605101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ac756983d14580119a6db305b4ff75659016ed4915fc1fcb29b7fb28f45e47. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/PTES11605108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9045b79eff4a27bcafa137ecae6d31a15b12d55529b7465b07e0262398fff30b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PTEF11700115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a6c63936166c7e7ab29d6c3b4ec6d0d90968f830a205b53958fe398d6dfec7. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/PTES11808308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3150686e76f4f4aed2722df44b3f2258b230dac9e9a9a0db613b17dc1a17a8a9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:05:39Z), 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/PTES11808310.
Folclore Portugal Desafio Armando Marinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf850151b4dbd1d395cfa99ed9168288a70bdd9c6670791f6d8f1fa9d057962cc. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/PTEF12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4119bd0045a4e0ab87043ebe24f9488f304947f4ab2555e796e17d72e9b0e9c7. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:26Z), 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/PTEF12300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ae2f9ecf7a8dc6d35ba5809276aad54a7bbf1e56ccdbfff2fdb66661b46120. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PTEF12400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbe19d4caa477bdf1315715e669a992d73d406c94867c97ab86f5c22aecf06c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/PTEF12400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874228acb2fec0329f5a84fd72208c6eecb04957c975ca70b69e58d8eeffc9ad. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PTEF12400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe134a4216939143652a9ccb8ceb0a3d589b3e99f7cff0df01dbc251fc0de6f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PTEF12400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6d8c7bdb3b586196f4e2b229c54e77c59404791601fb4e10aa5ca30deaeac8. 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/PTEF12300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecda99d80aca5a5ec08f5f0ed970bc8f880c375fd4188c648760f5c26626cb0f. 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/PT6GJ1700026.