thumb|right|Orphans by Thomas Kennington, oil on canvas, 1885 An orphan is a child whose parents have died, are unknown, or have permanently abandoned them. It can also refer to a child who has lost
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 0x860d342e31e055e2adc1b93bfd296cb98edab0d8624253da9e499ce04c606120. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b94fd7fc-39c4-4b6d-a97c-e8933ac9962a.json and https://artists.proofprofile.net/proofs/artist/b94fd7fc-39c4-4b6d-a97c-e8933ac9962a.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 0xe389ad17a7f3ad5f4cb03ed6414f7c445b9f246f33decee79a8d9570c3e098b0. 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/QZMEM2256421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634b3d434251b890d373c368edfe012538d7025be8564b23d7611e93c0755f89. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEM2256422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26949a3d642dd094c82f1badc76af19b3ef3dda2cf80552ec4d05170e28799ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEM2256423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4265e9b3f1bf73c3962a3c5cfc9584fbf614a3724f556d9c2f60f9c4208d2a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEM2256424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d0ef3a4ae69d7072db358d84814d7d79f8c4ca493baf980532dcc5c8312a4c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEM2256425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2052f8e32a7d4c6cb39bd905f3fc23a91f83002db045a3df0d67fd63b00ba4da. 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/QZMEM2256426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51f2f40870a99b16fb07f244f52ce21ef9c07f752d287b7b09c24b2ac96f719. 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/QZMEM2256427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f52e3e9a801f430583336c048691ac638cf48826d4837533c42e7a047edbad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEM2256428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7e5f2550ed4aa0614a09dd871a58a315c109b3cb7bc13e8a5ef405700b3958. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEM2256429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60bce01edffd2efba86458b8391e35e6ab434a6d2444b89270c2f8bbd06e317. 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/QZMEM2256430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370138b6d27f77d7ccd9a864dc00e7b87aa989988a24d28ecb8c52d9e2bb30fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEP2313118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842d1b65c3b845cd30d84aa0744b09fb3a65009053cb9049868fd5c5784f2a35. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEP2313119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486fd5a55dbad0e25569f6fb8d9958ed2239794e7f26ac169b45859fd5e6716f. 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/QZMEP2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5575df3beb5a6e194333fca20417976b2d8bec9b02d1ca0f841427d34942d36e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEP2313120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ac74aa57ecd53dffbe4884bdde24dfe1a4ca68465da9bb597fa776aa706adb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEP2313121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486fd5a55dbad0e25569f6fb8d9958ed2239794e7f26ac169b45859fd5e6716f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMEP2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6170203026d24d44a990c614da9323dcfba8107e56743fd8f5842daca6855d. 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/QZK6H2230033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0909abc14e962e256b49bb14a7aa00f3e7d57a9da4775c2816228902ab7b17a7. 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/QZFZ22249340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c70834e3db1cc11eb8f1a4d56ff59d6a6db41d36314a394d986132bff33963d. 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/QZRP52178559.