Melan is a village and a former municipality in the Dibër County, northeastern Albania. At the 2015 local government reform it became a subdivision of the municipality Dibër. The population at the 201
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 0xe349744e401cb7cce7115e07e8aaa28a282c3e61843ce730cf3825281a94345a. 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/f34048c3-5744-4e0b-bfd5-1ab0b572ce0b.json and https://artists.proofprofile.net/proofs/artist/f34048c3-5744-4e0b-bfd5-1ab0b572ce0b.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 0x1b69df5c59e04c8f5927da709a9c8eaaa7a6ca09c36ff2a76f95de6d63f395f3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR8GV1729390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854d15aaa6dea901e89ac4561d575d1738f7a8c7faf8120a81be7db432c4a3aa. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR8GV1729150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35be353064d0f3a4f911085baadd3778630f88d40cb5faeba296f90f31833539. 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/FR8GV1729190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a59934521e54b076e4828c7da15457dbfc41488ac2ecd8ea7560e660b9c0d31. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:02:45Z), 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/FR8GV1729260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff00d22a5a15ac545ba13e71ced2dc22ca86d2380c3aaf5739d6fbf662f3e316. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:45:09Z), 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/FR8GV1729270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf307d74d40941a24e1f3198d491b9cf97a98b3a058744201f37d9e3fd5c7dc4. 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/FR8GV1729290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18152d20d9b959e970f5d8fcc09960d65795ab09a243f1e0c01d8a8dff02430. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:33:12Z), 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/FR8GV1728500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3683e5632e42af12754b5910ee72deedbf6c0b6d6a883e3d27e226c231301f04. 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/FR8GV1728510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d8bb6fa1496db0c9aa051a88d687391620e434695354699518360b5640395a. 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/FR8GV1728580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6068e9fc6880b1c17ac8f0adb0fa34f75a51f2e743d7343611ac7e2a13016f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR8GV1728600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e310d80e92eda6e1e64008277fd6a6d23acddae8eb82132b550efe2a8b14f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:07:26Z), 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/FR8GV1728610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e797dd8b654e450eebe41b0e5e13bdeac187cc4a6638033f8d397a14cb0baf2. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/FR8GV1728620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fee713463e90ea2cf4a9b000a3b27e690f7e25a40c12c60a7cbeb9317c1c5e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:19:29Z), 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/FR8GV1728630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f3380436de451f94f51231342e47ce0ec6b78b81c36c09fec9d1bf4235f0c0. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:35:10Z), 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/FR8GV1905350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e492470be2466d210fce06bc9865ec2ba1671d70b05eed13c8ac15ec1261f5. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:35:06Z), 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/FR8GV1910600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e0dc72ebc19673a097e88723e127d551e14c76b8b1d4ef86c8862e4a7046ce. 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/FR8GV2020340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1531e77dc7cc3f7c2266f6e06e8133fd623d9e8b879346cb9bbbb13ebb082934. 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/FR8GV2020380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14a78af28ee152bd63941d3a2c3264254b0b0fd54ddd821d96ad506ad44d18. 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/FRPZ92004520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1705de74dc53b3601dff20c02d10a38f59754ad9150a5cae9d3cc5b05250b505. 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/FRPZ92004420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c083932c4864e920bda81893b5312a9460231a48476ed857d1d75c1d440126. 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/FR8GV2020430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fef094348e696447955030159ead481ec3eb6a54be84262005b4ff75df8593d. 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/FR8GV2201060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552bd70f9cf9f7f737536b1fec14b170797f190813cf8d9f95384c80da1cd62a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/FRDKU2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd58dff07bd0af40f99e07b94fd0bb5a4107425cec83d5403326354d6b9c521. 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/FRDKU2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b8c70d3984ad6652181f6e188de17b03405f9c99899c50b2d70ae30c9ca86b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:09:34Z), 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/FRDKU2100700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fa43854d3323571439f13905dd049f4830336af8ccd745dfb3c8a3a9a79c93. 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/FRDKU2300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acb79df5d18411c04126706e8b0835f60a7b33ee24741328a59c1bea4fca2a3. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:59:09Z), 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/FRDKU2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7cf0c66b548c6de39dc186bffc307280687efe36045b09aa0b2c1980cf186d. 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/FRDKU2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fac005ccfff14ed2fb76abb3fb1883d452c95edf4e33e3f170b48f333c1ad4e. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:35Z), 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/FRDKU2300200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b29ed5ac935470ba7361518e1fedc21fe47590b89baaecaf796765fed295c19. 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/FRDKU2300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa550c5bd788b6a795ff3fbb90b00e50cb9fed86cbf564ff9d48fd6fb2fcd2091. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:24:03Z), 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/FRDKU2300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008f7954399b72b92e3e81f5bc4e37c9f1da02b18c0fd53344ca7f9c5c6e03dc. 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/FRDKU2300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca45c9cfc29ae7c3d9c58c457e26b1c80f285b2e2e638daadb4da004a18e7cfd. 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/FRDKU2300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f18b4fd0622722568e0bac29b494a2732d28c394a644c4937c86dfb2675fe0. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FRDKU2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d44716dd864cbe3f7d2abf425298ad3cf56b23ab83e3732ce35a00b7b435c5. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:35:35Z), 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/FRDKU2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6526c9c70db90a2e971a1ae723c31b39126eddd3158ad55d93a3c418347e25. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W11932967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efa5503f1ae171f1f0781408d11660aa48f5d4b91968ee7d60ba71b410cb385. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCAEO1916013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4e9686b248e69f015ada9a6353c56c700e8870e84799836858502f8b986ceb. 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/FR9W12364266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b50614b9967124a49cce1ef1c47fe90c42ce1bd080e337b5c68acf9023cd1e7. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:28Z), 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/FRPI32300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f418c2b9ec752e4a765f0cdaf5ce82b9f75370e7ad4a31b4327f631180f4ef. 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/FR26V1405551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb61b0265e82fe55fbc178c6ccaf409c22b3d9e68d797f4e6840752182b8414. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR8GV1909350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0ddde962d591f55ad3b16355d5a3b8ec512320b3b4d1808fa2afcf78a9efad. 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/FR8GV1907250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf605a09e77be40e743b3a72321a2dc7db179658313faa8bfa580416c40cc5e98. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FRPI32300068.
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