"The Wild Swans" () is a literary fairy tale by Hans Christian Andersen about a princess who rescues her 11 brothers from a spell cast by an evil queen. The tale was first published on 2 October 1838
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5406383d278df0ccd8bdf0db0686005ebe24f6fc885d107cfd471d30af6dd4ca. 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/3a355574-0710-4ae2-b98a-a60a447c9e0d.json and https://artists.proofprofile.net/proofs/artist/3a355574-0710-4ae2-b98a-a60a447c9e0d.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d371440bf4187a7b526a63797f5b1a2af9bd5d64066b65cd46971106c0a4a15. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USWB10604183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4554f9c4864b213448f7b9a1de6062483762721252e2c1be88a9a7ad21fdbe04. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USWB10604186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544565df03543ab1594e9cb91f0c5c2297d07c06ee28867ec7160476917b1c25. 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/USWB10604187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06b57620fd72ad482027f1d0593ae5519e320e2bd85d671d6d1e1fc38de1627. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USWB10604508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5964a4d8caa724c69856d2a5f282da404e10beeec874f6564e7caaf8af99df1d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USWB10604510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d24a1967c487edfaea2736cb1521ce5e7adc1af2f92887edc05abdbec3a22d. 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/USWB10604511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93035a4c067f2de06b0dba07e01c2ed3541bc9d607c24e0f88aa920e3965b0a9. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/USWB10604513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf408231aff963de171112932a6f4c894bc032d1e4cf1e871496692625f993c85. 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/USWB10604514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59fbd27a71c8f7989fedbca2e2064e89620517bc838d75f58183c84cdf91fd2. 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/USWB10001810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5881470c797ba221768723473bbdc359bc792b5bf66b5559de82f047c99588. 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/USWB10604181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd23620bdb57ae893097f4d2e651900dfe0d2a364e088e071923741ea911bec4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USWB10604185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9e03c1022b5d30966e5c8755dfdacdefc36c57aaa12c0a1bfda0b0fbd21af9. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USWB10604188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad76d9ac4814db03bb4e4390106c269aa355d1f84c4ff3eadf88ef508630af09. 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/USWB10700590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6037f92ffedb1dc922727d2c8908a7cb7a0fc1e11b6d625bce4bf3a4cf131c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USWB10700600.
The Sun Shines Here: The Roots Of Indie-Pop 1980-1984
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db7fd24e50035d0a48a14837befbdebfbaf053353e090c6a579af47d62623ae. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBZHY2100002.
Revolutionary Spirit: The Sound Of Liverpool 1976-1988
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b004bbb5162096ac315df355de661fbfac6c118579fb2f522515807e0b7ec6e. 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/GBZHY1700030.