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 0xecfbbcd746e41cd97ed6f8e2b5058d376bc39c6e5994ff144202c07b61b7b823. 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/2d6e1d0e-2b66-493a-8504-9a195afc80ca.json and https://artists.proofprofile.net/proofs/artist/2d6e1d0e-2b66-493a-8504-9a195afc80ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
River: Cantos de la Hinchada V12ª edición
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 0x2cc804e8ffbfbaf0cd732930df23cf0971f1c315204e5085fa67bf20cdf4c0e1. 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/GBSMU2128072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfb0b6176edd008e6fbcf6c2da74cf5c52880e5401eb4af480b4b7abdd0b44e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU2128074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887dab291e96b47ca37fc8bd4c331420e4de62135f0e82631dcae8537305b6ec. 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/GBSMU2128084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73388219029742eb7ffc44d5985eaf2502a8d47cc2a054c1b79c52be7d6cd45. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBSMU2128086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65206552c5824dcbae65080bca0d5a2e39ad933aad602e6004900c1e1afa9a2a. 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/GBSMU2128088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a478c324cc259d0829565d79d4834237f1e1049120f4bcdb64d1d539de194f9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBSMU2128096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81933d0f2eff14b792d942e12b725ccba8a5385f8213b2c3e3077bcfaee3203. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:04:03Z), 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/GBSMU2128097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a7a7974b03a7d636120298f702fe835249895c76128d1922d6bbfc448fd6b2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU2128098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe227223b5845fcadb5e5e8d58b3c7d7e0c1558f1014e1cc1a3694da76a7dd60f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBSMU2128117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589c9a0aa3f5cc0925c11badff0e0f0e58fea202ae69d66f5b272bedea728f09. 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/GBSMU2128119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf243a3bae535ec31f893676ed3928e580f9ef0c9ae2dbb6140b01f31be7f8a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBSMU2128120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de7ce37e6d36765ea258c95070a697b692be4f0c2ae5ebde07325a93897c48e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBSMU2128132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d98c41bf64d851907664df265eeca998f3ba3c5668470961267a7b046a287. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBSMU2128134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4624ff665cf557120c574884a86091b8df64bd82be9153ec1d5c961d4dda1fb6. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBSMU2128135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7db0bc8561ddda1b195c87027609eac0ecb92067b0873d04d444a83606dd25. 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/GBSMU2128157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6998fa721935f9fd84f5a72072ea265912d1efe44fc9ffe4fb9abec70a6744c0. 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/GBSMU2128158.
Mucho Años Estuvieron Chamuyando La Gilada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bc3b8f3ec322e9b652a9ecf74227e0038b30a0975a17ba488acd3793edc46b. 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/GBSMU2128167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62370320ce88dc7d17ca4355d827984c5cd0fb98c3cf7c1d3bf63e70956e5a73. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU2128168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf1429d702f25ee73c71ab0d5ec0690b0a81b4f673f9eed0b082afdc7c7d0d0. 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/GBSMU2128169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1243ed4738576c2bcfc7d56ef47f951349030fd0151fe17ceccb579931d0e8af. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:59:14Z), 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/GBSMU2128182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de317d83b1bec6be4844921596549fd2b296d0b0a5ea0c16054295ccb207cb3. 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/GBSMU2128183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3142bd6cd0bb0ef40dea1e08bfd9b27b2e3b9fc12c767b7c965806e20318b932. 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/GBSMU2128184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17baef5227311be24cd342a78aeb8192ca156a1209e9bce607884f5f6028661. 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/GBSMU2128222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5798079d4ce84b1d5d38cab6ba7d85aaa4a9f2b7d08a14a97d8897c794eaa1e7. 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/GBSMU2128223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ed16c15fd5028efc6cec7c2eb7d003d127fc5c4824286bf4a073a9fada239. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/GBSMU2128225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455b36efb86df99c9991d3e246db4e7c26cc44e68f5c69a52b3e1aae3f94b4e6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBSMU8819866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee2fecd4a99876bdf4b5f01dbde0ac94770e3790fa07108cacafc559b12ef0c. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBSMU8819868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414194826195d3b0eb6b3858fb752bc518dbec91dfa9bd1757f427a0656b99cf. 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/GBSMU8819869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bab5b27b449b5c399557d6bd30383a1e41605042b8ae47df3717d9bd8c88318. 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/GBSMU8819871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3742d55834f06bdf1b9aa58c11b11754c028ce246df7669699d023e0fe132418. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/GBSMU8819872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2fbe0cdcdf6afc09b1032342f00928d69f5815964cd8a4d2ec3fe017dae173. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GBSMU8819875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96100cb4ce762b96ce8876772a04066586f644d28d1cf3cf186527e54a551be1. 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/GBSMU8819879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc52624de93267010bccbbcf45eedc0904ecb9647f6c3bcd5204e3209f21a67c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBSMU8820011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d89f403a8b64d14f57fcb4a5f318474eabd54c8bd8ebb7dde721a0b3e51b6c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:45:52Z), 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/GBSMU8820272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099e7fd53ca283398ca12ef2254448ec6d7308ed354212b210be971409daa58b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBSMU8820282.