Altan may refer to: Altan (name), including a list of people with the name Altan (band), a folk music group from Donegal Altan (album), a 1987 album by Mairéad Ní Mhaonaigh and Frankie Kennedy Al
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 0xb4c874284cbef19ccbdc34a94c4d01451d519108f551a359f44707586e5b662b. 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/0552aeb1-99ce-42c7-9cda-09feccdffed2.json and https://artists.proofprofile.net/proofs/artist/0552aeb1-99ce-42c7-9cda-09feccdffed2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Pimpa se'n va d'excursió amb l'Armand
Chapter 1.1 - La Pimpa - Collezione di storie
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 0x7899b93ec61f4048f69c660580c27bbda6ec3c15d778c0181998388f51b7f5fb. 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/DEWM52247771.
Chapter 1.2 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a06d7f3ff8bbc9885a9b0874be7965528d6a6109958b581f9fa164a8e32b1d4. 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/DEWM52247772.
Chapter 1.3 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4de0065e01c45de732e03e00747f18b5801d38a8884b28eda62c6e7340fca. 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/DEWM52247773.
Chapter 1.4 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44adafdcff0fbf960c4f05670fcc12a92830cd4f46a3c94177dabedc08738194. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEWM52247774.
Chapter 1.5 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0213b6223ec70ed3a1a561bd05bda1e51e6816a88eed1aa9ba1558ff9180f7c6. 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/DEWM52247775.
Chapter 1.6 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b46335b93069676a312635a748b4a12374ead60b68a00c74cfb8fe6f7ff9b5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEWM52247776.
Chapter 1.7 & Chapter 2.1 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecdfcb4702a215275c7b1b39cc0b0c218d78ab4dcaae67944ed6b096d8fb6a7. 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/DEWM52247777.
Chapter 2.2 & Chapter 3.1 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c45e8e2a1ad8349cef6bc7a91b9cce44b532e72e9bae0769bfd036bfc57a0d4. 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/DEWM52247778.
Chapter 3.4 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d1117488a3e9d913075653481e8ab2fdf98cd24e40dccb753c07d3d7021938. 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/DEWM52247781.
Chapter 3.5 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804f97f469cc0fb464697fb7223a85f9c927f3d35b70e05100664f444bc4dc14. 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/DEWM52247782.
Chapter 6.3 & Chapter 7.1 - La Pimpa - Collezione di storie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3183cb4e2e7f8406acd3eb77c09304b2787577ec427bb1f62619a12f0f31376d. 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/DEWM52247789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8023c7c5efcb53eb0a0e59551d57ce78b4f1c3cda52b88b5a1a39e6cad53ccc. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/DEWI50940237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2180f7892630828bc124161de15133ef538cca36ad56a52af3d380be73c3d7. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DEWI50940238.
Chapter 1.1 - Pimpa e la sorpresa di Natale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0d2e0e04e1c5bc5265dc81dc1830b3c883f66124405874561b4ed45d9d4cbe. 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/DEWI50940232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5c59d415f192bf7e4607cb7af9fe0a462de8f566537c5be0fd6277704f6cbd. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/DEWI50938554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a638576ddf2dede69976cbbf02b635ed66e021c115e5d20f061f92832654e2. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/DEWI50938555.
Pimpa - Pimpa se va de excursión con Armando
Pimpa - Pimpa en de verrassing voor Kerstmis
Pimpa - Pimpa en de dagdromende paddenstoel
Pimpa - Pimpa en Armando gaan op avontuur
Chapter 1 & Chapter 2.1 - Il Diario dei mesi di Pimpa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe18dbf9313bbe1de15fc48e36544bc86dd20e3a558bd87ea777e99de495eac6. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/DEXQ80118470.
Chapter 2.2 - Il Diario dei mesi di Pimpa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff14698ba50f04d865f8f355a2e7f0f897a3053236b20e43c714a08eb08ccd5. 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/DEXQ80118471.
Chapter 2.3 - Il Diario dei mesi di Pimpa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a771e80b16d47b103e904de5139507c13efc4864a88cc12b573b1f1074897b3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEXQ80118472.
Chapter 2.4 - Il Diario dei mesi di Pimpa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54b1c16106ce45264f4b9a1dffc64c97f9f08b45e0152e6f7377518f198dc87. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DEXQ80118473.
Chapter 2.6 - Il Diario dei mesi di Pimpa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa777ba66ff1ab636ac99c670a82ed650d39a0e2042b5dff4d3687ed17f93fb13. 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/DEXQ80118475.
Chapter 1 & Chapter 2.1 - Pimpa tutto l'anno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ec482628d959a04bd9ca0f8a767819b2a32ecdcf374c6449f5964d4eb5e35f. 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/DEXQ70195655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7987f2d64dbf4c6ab57e53eecdbba3e41ee041fd381914221d1944b7d9d8f2f8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DE1JR0061095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf3f61bc66d27f1b779326456c1cb65c257e0aac713733b7b1a2193d86f1a59. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DE1JR0061115.
Pimpa i Armando wybierają się na wyprawę
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff9386abdfe620cad01aec4da69520725e9c1af26fb6f7373469ae471551a5b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEWM49968843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f391644dc7494ba1c5074dcb7fe6a06d0175820c32aade52e3f31f317255576. 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/DEWM49968844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ebf9447f1ee345a7cbcd616d1be1f3a14838fb5fb57b3182c62795a69fbca7. 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/DEWM49968845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41659f10cd1fe086a200a24de6e5c78c9a550a94f0f96e76d6b8cf76316ef3f1. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEWM49968846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf01ae72b89d4d848fbdb0f87ca78f8834a6637d421c6da82ec7a8c25095da8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DEWM49968847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d305a4449533b121d59222b095a114621847ce8fd37d2af92f60093425cb10e. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/DEWM49968848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621a744e85d91366a194d87d6dc71935abeef1810ec989acd6fefe1788104355. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEWM49968849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84d7bd0fdccf4bbb2c4f71e6ad5b22447dda48b211f1d672ee8fe66c0a446d0. 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/DEWM49968850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddadb5bd1937afc47578b1c65d39b88ca64f9412af7770c7fc0a5ea29b20979b. 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/DEWM49968851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a59b34548aa27808db4b50067ffda76fbaeae5669e7d9921c03c4a9b5eb1101. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/DEWM49968852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5eecae3f566b034255e4339f73240245d19100e8d1d69805ec67c47c58187b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEWM49968866.