Easter, also called Pasch () or Pascha or Resurrection Sunday, is a Christian festival and cultural holiday commemorating the resurrection of Jesus from the dead, described in the Bible's New Testamen
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 0x5750a5a220e30597c1753528de30ee484af68db36752946cf71b6af25f460641. 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/0c8ff9f1-ddc1-4802-b136-c190b30b4784.json and https://artists.proofprofile.net/proofs/artist/0c8ff9f1-ddc1-4802-b136-c190b30b4784.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 0x8ec53982214c4c0f94bbc8142b22d532ccdc57f0b01f634a490ed631913aff09. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM91348108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce30b72fbf2d28efeae04ce16a8d51f49e5517d06c510afd99bb69cb8b1d61f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM91348109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d5b543d3caddcd16c13a5eb559bf6f9772db5301a5221336a3b5204c0194af. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USHM91348110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bd62203dde237bb3881224935362040eff7af6767ae8c7dde80a0781b2eebc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM91348113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff216bef363f20621b9297a9aa637db7f9c2d762f7249499b988e54b5abf87c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM91348117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39f6a8d2370f6332113984ff73a657765ba32787df28d4f04d0174fdb174c31. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:08:09Z), 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/USX9P1271924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7f86d42c527c9f72cc72a83eb4504c1f42aa90bd8295625973eb4540c0aa66. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USX9P1271926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7a3d35fbfefe347436fa457189a677db07a311c8e754206286886b8cbcb184. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USX9P1271927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c281387f612e08d17d48a0804effe72e173dedc2c22f4c1c1143285a6ed69a1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USX9P1271928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010b6a0ee5f81a8123140bd65b7c3fcd9d621895fa9498197751b8010f9b06d9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USX9P1271929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdd01bad8f6a589822bfaa11952ac1cc187c9f0624b964f9a396dcc38905316. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USDY41582092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2502bfba014feea09421fa88faac74db1fff0b4bf31fbc953d179784c5f6162. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USDY41582093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b09719dac838e9243c618669acca093b4fa621ccd7751ccb32f297d4e665b2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDY41582095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2833c324f0a854d33a5cffb0cc98945b785efde6d4bf620866a92473b8ee9f3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USDY41644910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e198de334517961ada929f487b8f174990126473db4b3228e2f3bd760642a25. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USDY41644911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a24283a36f8482a978782cea85efd7a31fc411c3d6256ca61b460ac71e88f7e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:24:18Z), 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/USL4Q1926726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3c41e0d63b155e86cf56315984a00542ba8ca3b4ca77520520757455067fa6. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/CAHQJ1962121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce4741914b84f667aa321ea23e8f9e668062f66afc4b7fa083182c22157e397. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USL4Q1926727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db2b5b7e93266da1feeb41bfd4117c8d7106d5964051a291f7cded795d9b42a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM81738464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74305f4cadde2a86939e872728efa069b2e432ee08d512792f24bd10d1428719. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:16:21Z), 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/USCGJ1790509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cd5e1b80176a81365c849e8b34e46b37dac59f590f4989449a3430fba981a6. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM22266154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ce71a11fc466bbbb742adbc6f5fd33f05826dc55e6a27ffa2f7ffdeb33af4f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM82235114.