thumb|Pandora by John William Waterhouse, 1896 In Greek mythology, Pandora was the first human woman created by Hephaestus on the instructions of Zeus."Scatter-brained [of Zeus the woman, the maiden
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 0xe85e51faa35c001ee69d0cb77459abc6ef149daa30d625b87aff8eb84a4457be. 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/de020c92-01df-4594-a0e5-531beab4a135.json and https://artists.proofprofile.net/proofs/artist/de020c92-01df-4594-a0e5-531beab4a135.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 0x74ce180f1a323b9298b6f764f321f2c75e8f7a0133403eb10301b8142d176501. 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/HKC291800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ae510fd8682aede5ac979f011b0f4dcfc3e1036d178c0f8293b587ce5b8f08. 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/HKC291800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc3c50ebcf28c4f0531281428048da8b22c780d449bc3c6c5a4e1506cfa6f38. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:39Z), 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/HKC291900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211c5a6892e745fd719debd8ecff6c99cd84a9d67dc9b9a9e64ac803598d353b. 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/HKC291900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654c80a988bc318e3e2ed00fa4ad475a5a5bd2a5d88fcb5e3bbd91251aaad700. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:20Z), 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/HKC291900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfeaf03f903a93428686bd4d47904a8ee05f1a3e56ed5c160c95d77c1570be0. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:03:03Z), 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/HKC291900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620715eb716982ca5627e759e0b97376638274ff0516e2d2207de8548ededdcb. 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/HKC291800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1737403cae6ed1f4a9c87554584bd2435d94491e1d5b12fb79c8974c1a457e0e. 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/HKC291800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cd145927d84a39f65d9067c42e8a82cb6ee86aac4b549adfa40c49a1a1c6c1. 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/HKC292000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43212df87d5bd252338ed789fe995a6c7c771f408dbfa4d16c3db4c5138c9f4. 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/HKC292000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458cbd4662d647fdc97de46e020e22c13c46f28fc98151ff5ad66c57842b3d41. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:49Z), 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/HKC292000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617cf53d63e45ccf75b57ac639c21c5a760bc1d00630d60d70451c316c63eac4. 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/HKC292000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ed56dd57d57705da90938fff9cdefb5531d4de3f7ebf00abdea15e3813bddb. 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/HKC292000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b2215a5fd902b435a9e167ff887d5920d0aa3ec7b0d53b1ebdef3bfc646d86. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/HKC292000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b072648e81df5d9dfe1d3d37e12c8ffb71c11a3af8ac80a6fe9283a0772c65. 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/HKC292100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5ab5dd6fe27b61b7cd1ec8e2ea496a1c6bd551c0164f897d052f2c69450dbc. 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/HKC292100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ac9220374a88758925658cc488c3bcce2d159eb0ee9a54c0e8718d4078c87b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:02:52Z), 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/HKC292100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49d76ca961a92fc86f31f7e70a53ffb94a0d24626774297d5301e761e7efb17. 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/HKC292100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058e1a79a42f2b60d1f56aa818afbb6d9c0446252fed13b207429723932fe280. 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/HKC292100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122ba3f7b5e9e584fc1c97bb4613f2d74a79d789cea55d87f4163f4003707661. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:03:08Z), 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/HKC292100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847c9e8bd6946fbca7bf6c4cb9aab2a42240df6b84818bc48bff3f355bb84455. 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/HKC292100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7967abc79778b99651465fc3ba973dac8b2d51e65b9b8a302ca7179b0136f69a. 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/HKC292100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a7d6622df10930125402e64d7980ce56ab7d06f5b09611c89ec9114dcde42a. 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/HKC292100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ce1acc4abc78d4ecc091d32860505c4e4acfc5e7598b4d274eee8d978db7e9. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/HKC292100052.