The dodo (Raphus cucullatus) is an extinct flightless bird that was endemic to Mauritius, an island east of Madagascar in the Indian Ocean. The dodo's closest relative was the also-extinct and flight
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 0xd2b1221a5adb005c0353ee5b98deff5cfe557c33201666e71fbdd11898c399a9. 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/ed36758a-5d44-40da-af6b-2ce7da859888.json and https://artists.proofprofile.net/proofs/artist/ed36758a-5d44-40da-af6b-2ce7da859888.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 0xe26103cf643b4483082dab9d56ba74196bedb7cc962c89729deff37475653973. 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/JPX602100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2217df42bcb921b00b8d47cec00c59c3fab55e13e64687526657e61e7e3e719. 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/JPX602000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee85322af28a10f9e6de5a64195cf3c8b8e068b864f8f5f0089fa8457a187705. 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/JPX602100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce9e48deaefc92a5c7b38c46df9cfcc9812b36752cf6eec9d342e7287a9a2d7. 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/JPX602100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7522aa26735b2b1a5e429fa2601895171fc8857384c476ce9a3c064d4cafc1. 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/JPX602100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b065a370275a9294b45705c80c0a23468f45772b0be6f8d7dc8c3394973964. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPX602100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c3960d570a6997839452d0ea13db88aaabf09aab274c9106eac044f6dc53ff. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPX602100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab96521aebb47a6b2e8b6fa4a633ac534b473470389fbf8414e3ff8e1e962c3. 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/JPX602100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a9700965b57812b192d96c289bfc019c2abbffb560b3b0ec2fa0287c4e2e03. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPX602100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bb1b08bfac0814fc72b007b12d52e0d6649224f510cc86c6650b977c6555a3. 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/JPX602100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5602f91291fa9a412a97bd5801e16d5f41d5325adfcdcae8935a42f2d5206cb0. 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/JPJ902110360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eb7fd0c060370357935e576d24efe260a7c282eef5dbf56bf8116bbf38f084. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPB2429165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe817e091b8376bfcbc33c76c4ddd576e1b590b4f3dbd83d457ed4aa0838ab0d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPB2429170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242a8c7c7ff6764a627177ff67f3c3bab7efb94c26789cd6b495a74d1f4fe09a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPY2474366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faa946146a2b1dab0196cf0da51aed55db930f01200789793e2d26350e041e6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPY2474383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d45dff9e40ae57640af892da6840a71640b8534c36aa611e7b8721a81a56e9f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPQ2155949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb018ac51e9cae76de220f2c718d6639fa25c0a74ceb8d2e7b4ecdb34b6ffd199. 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/TCJPQ2155973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e42b73aab153f45b66659461a07732aa57ee985bb06966233f25c88bfb4a16. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCJPQ2155977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410d059115a3cb27202d8c8496311aa08c89989c75abcaebfc3ba07ba59a60ac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPQ2155986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047908d6550d33d5cb794bc58f09fa548f159d46b08869254e4852bebf9022e8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPL2093247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef61ecd1210e07e8d8ce5be84d8b0e7e34be529b00dac62ad799fdc0c97a973. 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/TCJPL2093251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ba5b8d500335f1d519897a3ccb55a8622fb01e4a69cbff153569f95f6e1e0. 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/TCJPL2093258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61383a4ec7058d0c80618ed80017f4d4b0cfdda3803397e88a843b75e70acdcc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPL2093271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60fe0403dd8d6f116879918a2f65cb82c561d9a064e3f2afe16b1864992a9e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPV2360301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9235f7e62303cc0c497b1a70b9a52f8afda95e802f71182e7a603d1af5aafc5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCJPU2361464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae19280ae5ee13b25737c610543f8ab6a19d537819155389ae869528b41169c. 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/TCJPN2187064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6bd33740bdd1dad5e724d6e7f6de03c317a11b82337e5de76a7fcca004d42. 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/TCJPN2158706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ba5b8d500335f1d519897a3ccb55a8622fb01e4a69cbff153569f95f6e1e0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPL2093258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645fb974d66d8a6e9d77acf410152a32b220807a2e14108c3f4682ab3b1eef3c. 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/TCJPJ1997854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa023ac8497ffd757e470b9a6847a80e442b414b3dd67dbaf438506490172c. 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/TCJPJ1958758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697fe8af569aea0e3d92f0d5a65ae4c5f895c92ae45f38675b9d07633fbefb98. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPJ1935859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93a9d69a1319e90af8cb8b738bc44f624fe0856c1adc9754fb6343f7defecad. 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/JPU651506000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d1b744d18c9373731c29e59f3026bfbf31ff911254209be099cb4439edb1e1. 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/JPWP02100955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea3fecfa3c0af32717672c64e9ef20ec8eec442ea1cb8e2f020c914ef1e2743. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPWP02100956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddafe2dc966d9f7827595d1c858185c4babc94a086c071ce7f1271ebf70c223. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPWP02100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab26af71d104d2e225987a9d67c94c46b555a0ca3f3bb9375fad4f6cd33fd83. 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/JPWP02100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9118f4b993e90fac5ca47e607d800fbe062ecd1f698d62864345996b5e3bd3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPWP02100963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f621fb309f3eeb29e4ad18d899719e88a73bda52b26b9ddaa6ac602ada33f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCJPF2580803.