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 0x5c3ff4944e4c6e66e5fd9a34003f8e441999ccb0cbfd5302ff9da0f4e698c85e. 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/8eac34d9-4613-4f2a-8b56-a9e9b36a4550.json and https://artists.proofprofile.net/proofs/artist/8eac34d9-4613-4f2a-8b56-a9e9b36a4550.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 0x5bc04b7216d86374b7db7f24d74c691e88044ed0bf4e5158b0acfe4c0979d768. 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/QZHNA2497673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3639595d1d8df7d6513b4d4a0ece811338186a1326a644a9e9d697e0c4d4e07. 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/QZHNB2400408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc695f3c5b351a8d6bb62e07acf76afc83fa17e54a28cf6527f54898ba79bf25. 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/QZHNB2400406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301271d0d4de27857d82f9e47f738ec762f00bdc39b2b08b66b04baaa6cf1650. 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/QZHNA2499158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424ab5b2b3624e3bafea1b047169e53a3624373d552e95478f167f18fb866c9f. 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/QZK6P2458701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde662e8a9e71cf9b42c3ef750bfc55312b3690b797e84dd8947730492f76f2c2. 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/QZK6P2458702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b914ac78b2c35631deb7c348ba6c9b2cc139d7f984995c6ecdd1c2130348325. 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/QZK6P2458703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4b7e04eb7adfbc17caa4b26cee264ff7ad38eeac553ad4498a992617cca2b3. 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/QZRP42407350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378c1be2f5bf3b6524edc9b9707cc256f317c3f87115147c74d8ce8c08248076. 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/QZFZ32483645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61418cc0bb061fec6b5b6a854f3e26d4fdf7cb3aa9ede4df7c8a1112bebefaf. 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/FR9W12367500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5088e19287a6cb847a8657b29bac692e5e3cd6b994010fddd74c391f72a15e8c. 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/QZTB22385325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a733fd9cdad54b8b2addced374eae3614c8bc758a951b02492706ac6c6ae0d. 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/FR9W12337338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e86a4fd7d0d7d7f4f556b2a5e64037ccd50c8fc6875855cc7d4ac19567169f0. 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/LBA132301205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb81270babdff9fededddfc98217b125afe53d5a416390d637e5d995bd0b2c6. 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/QZK6J2388814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88110f53d8fb8128f5b8cad4710bce654396bb4851c58b5277ca0986f40a2e44. 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/QZHN62353294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1605b9e29ed7d92714f4cbfb5301d64f177f2542e8ff83fa3e5e63eb1107e1bd. 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/QZES82355509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78599d559a296ee48c9c69f615de340804c6dd3151c4125bb944cc62a014e280. 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/QZES72305010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a58074a63aa13617b5246dffc6b2df0dcbdaa58477b9e510ff7ed582ec8731f. 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/QZFZ42350525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae69c930caa744518a56c0c6dea09b271da882de4d03a71d4ac18fa9508e140. 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/FR2X42344619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca448afad181f576abb3e7ca4a77ca6b2fe4f56aea1dd67503bf62639fa22f70. 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/QZTAT2282582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a271a37f7f29575bd6ccee3559217f33adf67eb1579d315b6fdaeb539c08808. 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/CAOKJ2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b85ec82b718d1e900a508c65ba3096d88cf2f491170c223654fae41bd9825ec. 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/CAOKJ2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4288e9ba46c54d0a22b9dae8aec634314ccfb31e99cf61be20792609254b7e4d. 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/QZHN42200491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1158d7d8558dabaf2882ad7f738145241d68b8308f2851716acc185005a2313. 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/CAOKJ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11349748b0bf323944ec04f2d232bb3b060f0dd123fa7a8fe4cead51b4199313. 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/QZTAU2106239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f07e69affebe466951a5507e433ee46e7ee57d5d8cbe4d14c1a52409d7f355. 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/QZNWZ2172279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076e94031ce8357dc621c8def62c293580c3797a1ee58616a9c7bb623bd35476. 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/QZNWS2141162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45381657c68ad5870452c531d99bec86a8f71bbb6bea6c4148d2e7b418070a4a. 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/FR9W12130398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fbffa66bfdea6ad7951da402bd45ddfd3a1064296373ca6359e55d67c6c893. 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/QZMEN2143910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fcf464ef5cee1d7b4e39d9cdb5b03702e7cfa4f4fe8cbb882e50bf855c583a. 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/QZHNA2189301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca07ab50d8c62bc0364a5aa523742e22de85097775056a5cfa52c92bb6b23bf. 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/QZHN82146223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d83f9e45a79bff3b40fa053250ebd47eb0ad83eb6150014a9543f546b1fa8af. 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/QZHNA2147553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc157ebed86da3e2a6c1887b1f9883e84b1cc7aebeec0377e7848441c84724270. 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/QZHN82165128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3d0fa658a271a2ee45523a71179d7a67e7a176f06dbb4726c028ea75324755. 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/QZHNA2147377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f059ea61931f1ba8ec109d0278259d5f4d856590f212e62e211626361a1cdc. 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/QZHN62155739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce18a349abf51a3ba1a98a09a447fc9b307e2be818901b89b6f11e5b9a73f2b. 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/QZHN82146216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93032ac86c1a6d6521d05a569a4fec90c585fa17daf428d02fc65dc62dbd2b4. 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/QZFZ72246063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9864dfb35c96625be3d8efc747ea04f7f265dc90b52167d82da7a716eeedccb. 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/FRX762053395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b14f71b64e00dd75b8e17292854f9ffbc032db43ee4d26d536acacfe25f1c9. 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/QZHNA2187768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6667a4f5ecf0cb8f1a22c440f7a1a5ae3f39ad527a63d0644524fc7c2e68a103. 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/QZK6G2179608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed8981b470c566d3ff3cbfb69487d5713814b6208a157e8c4fce84e0ad0a43f. 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/QZNWQ2165171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9263f22ad5f0e04e29eee092404922f53e7b391baa1acea9fc90beb134f2ef22. 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/TCAEX2047280.