Morelia (; from 1545 to 1828 known as Valladolid; Otomi: ) is the capital and most populous city of the Mexican state of Michoacán. Situated in the Guayangareo Valley in the north-central part of the
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 0xea09d5852da8aff5234d5a285c72603f3e49374d9829944b4ffa32467094b153. 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/64900375-e385-4de6-82e5-3443e2aae09b.json and https://artists.proofprofile.net/proofs/artist/64900375-e385-4de6-82e5-3443e2aae09b.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 0x4f6057ca98334db1b5d1184acaf95ad2eeb734af7ebabf37ea232c0fb2904c9d. 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/CA5KR2017260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52524fd5fc7bee9ed26b971a4f771fcce0f22a1cc4623960d9bedb1837ebd8da. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA5KR2017258.
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 0xd002c143a2b2bf1f17ac87e8ca6f37d17803d1bec670f591645207096c52cc63. 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/CA5KR2017259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1ecb4fc8fe7d99898a9aa83c0ce9dd5a60fc3d5522dd89b589e63c25242170. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZMHM2487252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922a63043bb6e57ce33d2c76bc12c39baf33f07fca288c9004a1b97bb1704121. 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/DEY472475764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372f41ccf2ad4cee001b634c953c6a89b4ccfd531b0e9fb730468d4ab08d9601. 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/QZK6H2409235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e080fcd2a7fc9849448c0b8280b2c896d89362d049fab81143f7fc9ade7a23c. 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/NLCK42400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eab359b4089b3b45bde8653aa0014811504872e4828fa92580f6df696c3adf8. 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/NLCK42400495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6492055d6b770f42966828f73d9f69a5be6024b0f23d7dda99694e94355c971. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/NLCK42400496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1019f048f804e50013f642e04ae78b1905648260556d867c8c8136ba6081e7. 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/QZS632482222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75882e3a2532efd1ea5e90564d5dec5b80c5f680b0f477b0cb6fb7c63e1438ea. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZS652486985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee5053bb0f6750fd455e47312eb4402280a58564112c5d4064336d13ee742f5. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZS632440654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1e805dabc1ff2541ca4bba53e37188d763c1690c2211b3592288616141068e. 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/CA5KR2344337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45db1192dbf7ac33341c7f04cfc0556ebc78cecebc13a99fd0a55fbb21bd77a5. 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/CA5KR2344338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742b7d5ede2e2bafae21464fba8dddb212bc33133e148c2c495665ed54564533. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CA5KR2344336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e98912b6138bbc7dd026fb052443ff9e4bc84ac46697de62ba864b201448cd8. 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/NLCK42229020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371add59e0a441ac7442d889811fc2e95dafcc178183509507506097f59e42f5. 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/NLCK42229021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b24882c581eddd83ebedcc1598880684de6e7e53e5aaa30075429a19f9edc95. 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/NLCK42229022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c78eb2ca92b76322bcc698ebd9ac3a72ba205aa584ae8ff6c5ce2c9ce05e01. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFPL2100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0854e343a85a4ffd731816a92123ffc7f520ebd3b03f51a54a2e3f442e873b. 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/GBLV62133973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a3d9ad1b2413f24a85a8f709f6fd96ed2faade7b8bc0c45bc3852a254ea855. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBKQU2166739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5223910e063c80de452882af05e9ee280c0a654f98a8add4a97903f645c72fb4. 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/SEYOK2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b03c278820d110349e0e13f5f531297ce141cdbd48d97347a48fa1a6a91768. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:35Z), 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/SEYOK2000002.