Sandy & Papo MC, Sandy MC & MC Papo or simply Sandy & Papo, were a duo of merengue and hip hop music, with temporary residence in Venezuela. Its members were Sandy Carriello "Sandy MC" and Luis Descha
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 0xec5340ea10aa8df93735656d1d96d058077fde8e1ff55ba4483c31c2bbe5ce01. 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/5adf71cf-5d05-44bf-be09-ddef9b516075.json and https://artists.proofprofile.net/proofs/artist/5adf71cf-5d05-44bf-be09-ddef9b516075.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 0x84c4ff145744f6415bb74af4b34c47260e7f01fc3a017313147b6002ca04211e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR70502244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc613d7b0a2c88da29697c5b551616ee198763834f818b90179cd1f864543e648. 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/USPR70502245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364f1280a963f13691785272d930d0a34a68929386bc6f2828b656d487105c7e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR70502246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae418aa291e5771e4bca2796f9089078e4d2e40f5220d6c5b89b326475fedec. 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/USPR70502247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435260efd08520140143179ab399819e66aa0ae71223a4f510cfce7433178cfb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR70502248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16751db04d929eb99ed5829f339be2550b6be6ded5227e16cf1f6f5e2e0a97d9. 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/USPR70502249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78f478f9e57e270c7b5dfa8c5b985505f6ad9e29d05d6636c7dcff022c9c107. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR70502250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59997030a7a25dfed68f45541d0870c1c5715f6daebf61db37c9bab3fc8ce758. 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/USPR70502251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86df080bb289c3a28214b724835fa874bd5defcf2193e9e125a0fdf9e2541080. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR70502252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a72f9fd1e62abed4fe1b9e128a90c786b324ecd189a8d1ce122875b3bba0370. 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/USPR70502253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678774687785b67141a9dda338304dbe960a5319409763525e49bd2cf3bd9ae0. 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/USPR79800643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1a21b704334ad415c0f7bfa9dbc9732e2f230b9acba577ca21382340c9aaa9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USPR79800646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c99d42d7677a8cb97129ba85292cf127e031484d34971898ce084ff7095ed5. 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/USPR79800648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52647df8bfa789481896e0628fa69ba88dab1c66896d9c79f08321b221b57ccf. 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/USPR79800652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ae70473bdaf4345f0fa0eb80f9e2538a0e7835f93b2af9203e0ba1a5f3abd5. 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/USPR79800654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b98b47265acf314aa1a1e3ac00a4026a3015b98278e1b3ced92d6f20f14acfb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79700346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f82f522e6d94b9abae66fbb5d9c8cb3b18201dcbe533bf4698a9ac21d6f5729. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79700347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad77b8836be7635dd935a81e996db4914eb199decf9bfa83e1711a7706365d0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79700348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f2fb7200be1d20bb4ea56844fe33a3ddd4b2bf31de0a269f57f4a39de55225. 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/USPR79700349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1100e03349b4be87965085b4cf08a7dbfea425562e4b3759809383af99d1e4b8. 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/USPR79700350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b7f55864ea2926cac5b228c4a54067256c3a8051af27bf7dc9f1339c6e1f63. 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/USPR79700351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c37ddabcff6964db0b48a4d33d8791b82956d954d48473d3e24c28e85c4dc4. 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/USPR79700352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99805f4d1842717a0da9d9aa2044acec4410aeccf2b9b3d97e7f93d1c6d123ca. 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/USPR79700353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaefb6e6feb8e2e4d0a690fdf5250b87b8b5d476a5b4aa658241d8fd769e67e2. 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/USPR79700354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82433c6e563946d283a20537fff9c671fd2cf920d8a06df4dba5390ef3628c9. 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/USPR79500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d63d60657810482fbcbf9e9db3213330a436af7fc3c606371f25466442679cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79500356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2dfb0689074caef22dc6dc7a6dc13ba28514f74fe37541ea48df7b8378df72. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79500357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e0398413929e951784e1fd4173e8a9446b494bfb1dde604292f5f4027bb64. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79500358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46eab79c7178bfb0779a186fc7bbd8e9db8107eb65a6d3ea984390d629c73590. 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/USPR79500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3e66a6739aa5acd3db5bce54391b4e9a5391da3e76b4086ea5ade6ec390d02. 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/USPR79500360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eacdefd456532219ad4a7acbb613fd9254c443642056a3477119888fa9e2bdb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPR79500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1740ab3217d6851c2bf535d86eee9e69b539a9ee69dc04beb0d55224b2542a2b. 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/USPR79500362.
Un Poco De Lo Que Se - La Hora De Bailar - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b9cd1abcf40af339cbdf04f4725f4e536dff8f865d4da52910c9cea59a5461. 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/USPR79500363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b3f9db83abf97edfb20023b0165b7c2fc3d96160aee946385c630fdfde9d3a. 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/USPR79500364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769e0d3c09a735766e4469e5ce3c27c9bf5aea33b02a4bcff625b866d548facb. 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/USPR79500365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb77ef6576959db070be9e47efcb667b1c1ee2ed0aafc00ef34f62ffcd531c98. 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/UKXN22435267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f84b611459138eb437a9a36d20decb333a656f0c5a9428564fcdd8c0e6fc75f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMZ92452177.