Maraton, in some languages Maratone and Maratón is a variant of Marathon Maraton may refer to: Maratón (film), 1968 Czechoslovak film directed by Ivo Novák Maratone Studios, music production compan
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 0xed8e40835606e1767d79132aa1542cfb2b7dd9c44d3d8b02aabd36150c3b7256. 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/b445b697-c35d-42ea-b96a-dfb9a6c12e22.json and https://artists.proofprofile.net/proofs/artist/b445b697-c35d-42ea-b96a-dfb9a6c12e22.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 0x33714d2b78867f955f96f697f5d4022ee124d7440a626176adc3509acf63ea33. 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/NOCVC2188010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a50163fa7682eca72a84eb59b441ab6cdeacd21752b66dfb93a27ea1407f7b1. 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/NOCVC2188020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac765e5ec2557ea89e5efc8d3d30eb1236b198eee571595aad907b136244eef. 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/NOCVC2188030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcf768fcaaec9137ef76f9d353a779387e7ee1c293233e7e6f04e509d911755. 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/NOCVC2188040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18010dcced93e385a0331547411831bcc0c4f109c2ebc3ff8ba4089a3be43f7. 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/NOCVC2188050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533388acce844ab07059881107bcbbf2e1a9ccb550ad00f9c8093d5d189d1fee. 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/NOCVC2188060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f01aba9eddcd918e77245a19ce465e020e35a51df5b77ec16d5551309d72a16. 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/NOCVC2188070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda798a0da0bdb6009be9b00e805582734b5594fab18aeb4e500ebe0b66cafb0e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:31:29Z), 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/NOCVC2188080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd512ecc33bd36a9446f620d0c94cc472b6a29b3321fe6fa3332d5f6ff8b3e7b6. 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/NOCVC2188090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225b2f91b58ad45e14e6396641be59192e61011ad4c6a36bf4510d2d72c469a2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NOCVC2188100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24f2ac887d3f28c3ea4c948f24635b268158e2170f2d61a92adbcdb57ca6839. 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/NOCVC1927110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b768962ed9172c49bde5c591c39fbc3150740942a3f7c582ad81b891bb8df1. 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/NOCVC1927100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4868dc06ad9fd07970683d841995ea2e9b39b90b979c2f3466d8f8bb7f10a5d3. 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/NOCVC1827030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff5bdaf345e9d208e2e268ce8040420400d981fdc1b4ff3f0932af561bc2b0. 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/NOCVC1827020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0228b32db0e3fa0b539fe632d51a381f7e71fccc213d4666d824a9634895a2. 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/NOCVC1827010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755b82d75ed26c613399eb0f69c1835e2c16188850d11faecd89a49de1001224. 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/NOCVC1827040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081908a86b6226258793a7d64c31d8b3c567b9c4c8247cdebf420a40404fbde. 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/NOCVC1827050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749317c560e809f8b8e83bd5261949a17524d4ac76b6f652eafa5a87b926a559. 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/NOCVC1827090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28889b118f38e0848d2aa9ac2766685d53fb4ab4e4f7b609e5b79b61f20ee768. 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/NOCVC1827060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c7702b642ce8ddc86fc0da25f6d8268bf01b43e23b914fdc0d3d0a012955b2. 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/NOCVC1827070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04bd67e280f3185001e727a986887cbc3bec2c7f6e99aa13593d4ebba9d4f5c7. 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/NOCVC1827080.