thumb|View to the ruins being excavated in 1937. Travesía also known as Ulua-Yoja s is an important pre-Columbian archaeological sites in the Ulua river valley of Honduras. History The city reached
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 0x428332394884f2ee980c8506203b63df5ef0feaee44683ddc180be9c0c904109. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21d8fd63-6df3-4a13-8d35-e5fddd6a237e.json and https://artists.proofprofile.net/proofs/artist/21d8fd63-6df3-4a13-8d35-e5fddd6a237e.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 0xd99830a6f7c73fbc520402160ec839c3098fdb614df43628f6bce5f44903ab03. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/UYS059800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe546e1f52b9e6593f7fa12c920b2ea51e5aea3b57345d048efb3ece5b8f4d661. 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/UYS059800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a52afc3183957cad38bdd60b99f1b5a1bbc5f3f3bd07d99b4a030656dd9313f. 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/UYS059800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683ce262d8b888af01c8fca7ea068d7734020c4bba6ec5388915a55fdf8756d8. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/UYS059800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff234562da19024d5b75f574fcf34da1a3fb8667880f1cdcf05461c687e10321. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UYS059800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab81e4f1dea7d4bc34d1c8cd49b20e3795cf9bab2f514a1cda073dee6a994d8. 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/UYS059800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98c5c62e0805fedf036730d8b13673943912832c73c40b450dc50754dfe79b7. 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/UYB141402001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf011c93c875e503005259d54726b059a899881d0d215790723d5c466c478e89d. 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/UYB141402002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6951a64b457c804fdbfbd565296c6cb7b2792a819fcc6e282103dbf9a6850a4. 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/UYB141402003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b6a8968e487cfac77fb2d675bbcf75f1942243f8ac2d6e489333f5d5aa2a9a. 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/UYB141402004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e6fd71d47174c5c565938cbc70137bfbf6a0e303ac00d3e435b30cf867db3. 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/UYB141402007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49f3cf700d3f04c3e881e87eb8657cc8bcdfbba24f8253ab4decdc5ff034a3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/UYB141402011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8d717d253d39093875aa5dae893468931c3d100b3b54cc1800c84685623544. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/UYB141402012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1adb52a40e118fcd07ccf49bd0390a287927c3332e06301d68525aaab2ea19. 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/UYB141402013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae762edd497ba346bab288a454ed0b17668ecfb7ccf22964140fd8a1ca8b30f. 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/UYB141402015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa916567f59e4ea0abb3b08d434542dbce06611a3ccf0e8cd9ececda58248f26. 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/UYB141402016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6a30c69eb289bb8ed962bdae3db249e7c4babf7d963a455b167923f657835b. 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/UYB141402019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ecb7d5b97a3d2a93ca86725b0ac4df927a610038402b30f6c442b854ef18fb. 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/UYB141402020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98374caf1c0a354252cb278bc4fc6193bbe4542d05b67d18ac2aead32ab32c. 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/UYB141402021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6682c4528b682894c6864a6f35346082de87eb7508cfb25318c6df17bae948. 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/UYB141402022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5cf2e3d8b4e3720719ad57750db2f8fce9b913499b7839c446db1c24cb0b3d. 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/UYB141402023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93be8ba6ceae5fea8219e59017560a664a8cd8e315a53f1b4e08e41f03cefe6d. 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/UYB141402024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed35b47c7a0663247d7c5b1ed76ccfa57909bc49d4a3ee0bd6b3c62d4b5dc24e. 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/UYB141402025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ce2cfdf810ba6501576085c88202221641328c08c838e72660cbd292a9df5f. 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/UYB141402026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1162b31bd2d9662e4d91ded5e0e77230b692daa793bbb24a0fa606ee5c2f2440. 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/UYA138300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b829e4d2b8b10d50536de937e7f1adc935a9aa3e4c0a26b9e748279224484e. 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/UYA138300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4afad045ce5905459198b6b23f08524c418cb2cbf04e8497d0177fbcd6c0c00. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/UYA138300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093b039af26b370422f82808af7869f97a6d4c05588de767b13534c2fef15f06. 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/UYA138300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6b2e6ec4da10cc4f76f7d58ebe5600817c7209e2e192dc1bd566544a61a5e7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UYA138300004.
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 0xc2afee4739e0b2646c707b30df684713e92d59496c3d5b007d587f4c4b1b06c7. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/UYA138300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb222d42380eef36772822c2911473580a665b054f12b8c5b6003c1eaa7f01e. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/UYA138300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef9a30a156602e5ce239c661fcc208fc7433f09eec0981f322ad76b95d63df8. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/UYA138300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b840ce5390a33912e98230fb6f07b5cdf1006068f5d15a8d0afd153feb2593e. 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/UYA138300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e283d7810191404cc6291f8f50695570ba7a35e83414d7bbc6fa1001032d1d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UYA138300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe833c03439d208440dcf80de0e6371a31eaef67cf96bf94ca4b8daef6a043a92. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UYA138300011.
La Maquina del Tiempo 3er Viaje, 1ª Parte: Ida (1971 - 1984)