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 0x091117cd540cab395ea4155d65cceac605eecd2fde93dcc4d3db367b87d45aa6. 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/7533e059-b0a8-45cb-8038-01b7b8821ec8.json and https://artists.proofprofile.net/proofs/artist/7533e059-b0a8-45cb-8038-01b7b8821ec8.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 0xa82aa11fe0696a755634c2bb52f4189b4e1a95a6065296d9ec86966f149c36cd. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SE49U1901702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc43ebcdcec35dbe43ac44ade530b2323540c45d8fa3c5ab3e4be30f9cf7fb3f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SE49U2002301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ba745f91a50f51aa9e103b516532e94210ef7da3fd1c24c1e982112bf9d3a. 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/SE49U2005902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb34b2c0e5b20b2a1bdd85e63f26cd025e9f1f4916ea7d9b96d1f24f125f0bb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE49U2005903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c3cf8f39ca3ed65c04789b7fa4097d7a2e7029221b6b009e9c3ee1aec445b9. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:06:29Z), 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/SE49U2005908.
The Flowerseason Is Coming (Den Blomstertid Nu Kommer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae9ec801aa33a0dc14e07fb1e010f681622c0918a88ffb4728e34937f0e6a93. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:07:30Z), 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/SE49U2112501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc318e066cec8109072008e6acbf675b495961be37f5c4a4021b73c01d600134a. 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/SE49U2113602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccb960332e2a51ae51a2a826f91aa5e7eb86441b4998e53b82611f2279aad25. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE49U2114701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44afa4301e5731f7944b35a8aa3a16720ff5dbe0ebb682c47b4126ce4b50c31a. 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/SE49U2115601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e59a9eac419a88e4868cba0ba13ab485d5cbe6a086413d99ecc0908c3ad4591. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/SE49U2114101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b3391636a3aa049f75b9bc1dff2f210d1c0705481d3fcfe1e8fa675490f0d4. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/SE49U2112901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f4186b6ae9ae7fa476efdfedbd9c3ce0bb4c23878d784bfdfb6cb36f34f2cf. 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/SE49U2218201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c9fa4fe0bdece0fda5b3e3f51f39c78acc9199a3170161f074171753488302. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:52:11Z), 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/SE49U2220601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3ea28dd33828a509b343e933d5fb634f02c8310e0f7e336df4c14700270b57. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE49U2222701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d343e82c12b532b995821958b01dda0de788ff87b8689e013f2380756913c1. 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/SE49U2223303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4bd27818d0a4b568e28da68881f084bba70dff38309fb664fd34d6db9c5fb4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SE49U2223304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9703ae91545b4030278bdb3e39b0b29a9d6a654afe3c5f64420a733671583d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE49U2325001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c4fe8d81b147b2bc44a6af033fc2c3014d61c96516d45e77b621af37013a9. 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/SE49U2326401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090db1d0e54b19145254398341bfc51c36211709b74901aa7c46eae851da831d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:05:25Z), 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/SE49U2327501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c90242820c43d96a374867ab92ecc16872211e1b07ee97ec80fb9d2130981df. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:18:49Z), 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/SE49U2329101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6541f565067e86ba4ae1976adb4e2622b1f210f399d9f9d821c14311a0fb99. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZMEN2387644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb742374728c58e2df0956b45024a6b01410fdf032a46d93c4ccdbd8c79ab3e4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE49U2338401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f14083774e6106772de9c348be611ce87ea58c0d2dffeaca432de1813fe8f60. 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/SE49U2339201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6541f565067e86ba4ae1976adb4e2622b1f210f399d9f9d821c14311a0fb99. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZMEN2387644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c90242820c43d96a374867ab92ecc16872211e1b07ee97ec80fb9d2130981df. 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/SE49U2329101.
Have Yourself a Merry Little Christmas (arr. piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7a545e9450209cea2dadc77e1c179cf586b54a71b56b3cfe242809299e9411. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SE49U2340301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c74565f704a0ea231d0f9c6dea8ff8012080e45db8a54e8e6b0f3a92a347763. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/SE49U2443701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f28091df6dd6ec04a53295c420e1b667a28208e4fa41219d6e9fa3189e50c55. 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/SE49U2444501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2353ccae5594fea991fde6927ba756bbb03c054705d1b2e8219805d6ee5506. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/SE49U2450301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c96b81caa848e3e1c3085185c9e4a98a5ecfc6509db9438e199f1f979cdb0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SE49U2453701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981e012571f6d1edbbc8b36fb5eae5a08ccdeb9863c2593017d82f19b062d61b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SE49U2453803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c74565f704a0ea231d0f9c6dea8ff8012080e45db8a54e8e6b0f3a92a347763. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:35:21Z), 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/SE49U2443701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3136bcc1d3aaff54b6bb7b572135c024f03fca9e5efd0cdf324e95a9dabf3f22. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:40Z), 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/SE49U2442901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c96b81caa848e3e1c3085185c9e4a98a5ecfc6509db9438e199f1f979cdb0. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/SE49U2453701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0624ca973cc1e8fcc3c52ad54ef128b49e1d0fc419eb032849c9784924aa16f2. 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/SE49U2447501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f28091df6dd6ec04a53295c420e1b667a28208e4fa41219d6e9fa3189e50c55. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/SE49U2444501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2353ccae5594fea991fde6927ba756bbb03c054705d1b2e8219805d6ee5506. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:36:04Z), 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/SE49U2450301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea90bfc87f93d9f06b41fa98c3cdcd6d4ab27e9d98146d91c22b73743f223be. 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/SE49U2566101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8770fb638a6d94f87f28674cedf32543634f01c4653e62b5e7f3b633ec90469c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:25:16Z), 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/SE49U2567107.