Theravāda is Buddhism's oldest existing school. The school's adherents, termed Theravādins (anglicized from Pali theravādī), have preserved their version of the Buddha's teaching or Dhamma in the Pāli
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 0x1505baecdd6a356f446a12483bed9c3fc53103241af85c4b175e419aa52669c2. 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/bb85113d-6cd5-4998-adb6-898903dc97f7.json and https://artists.proofprofile.net/proofs/artist/bb85113d-6cd5-4998-adb6-898903dc97f7.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 0x4a79f276a26b5d0ff4e73c43138ff7047e6d50a012f8939b376a207b3806008d. 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/QZHN91985975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2035c9b8b088e1f7365cb0b6fab57178e87534dbda179a9a184ecf31d0255bbb. 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/QZHN91985976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b6dfbf6f3bf37e232dcf719af9900006e703abd3780095782579bc145aaed. 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/QZHN91985978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4903cfa0d16589b2236357ad8640d3a3188530ee52c38ade0bd035f58cc7f85. 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/QZHN91985981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb07a7a01bf894f53e15c3469fae20f4cb82224e8da2d5bb841d5e1c2d63085. 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/QZHN91985982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bc070906d47275dd13cf3c94a527302f05d9dd215acdd7aee2d554aea0f3d6. 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/QZHN91985989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e49cd037b59280b825ac823b0187f63a3554ae44a3e922dc8b35c735a7bce69. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZHN91985977.
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 0x48be11dcd12486307a70ae3b8ea59d54959314d0dd84961fb8e02922b04448e0. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZHN91985979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b169ca3cbd213583ee7f34ac106aa056683073a3cbb8522ad101d4ddc3649b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZHN91985980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4b4af9cef2cae903d7f6984f6df5f527fd69b8d395b0753acde70d44ff3299. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:44Z), 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/QZFYY2102056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a490ba2fd893911356566d49b0f7b1a2487dfd8a8e627f07d5911cb1a35212. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:40Z), 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/QZNWR2182023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095c5173725e32b316e56c1104d14c40e57f9d84bae4728eb97918b62840b9ee. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:18:51Z), 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/QZHNA2238572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3912abf2e6a98b0f5bb8e4cace7009a47a8c3425d5d7ff06ef463fd82ed23125. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHNA2238576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa305cbb1107f5cc249eb23d564a71f35eb2097d1d4acc03ef151fe2b21563095. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZTAS2205051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0537d6ec5de8a01d470e35baa933e87ff2fab8e68e15533b636bd153586f2678. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:50:13Z), 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/QZNWX2304630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63261f5c09c68e1e3c55a0869a74b152dee1529f6451666e8bd2563d75168b01. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:06:20Z), 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/QZNWX2304631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b0eef409d05293e9ecf79c74b5cbdd730e413c7919ef96652f64474684949. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWX2304632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efbf0b54df7b92d7254de7905067d4143a3f16b897b4506181eaa5632bf2eed. 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/QZNWX2304634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e11a5781270bc2b38a9f93e5715e74159d7cada91e4f57bec028f4234e54cb. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZNWX2304635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50973cfa0eaaf6bdf570b5a9d3f73ceb581c683679817bd5e59308cd9622bad9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNWX2304638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb18281f095935f0636ab4f7255f99302d5accb0b6fb3874e88b0d38531729e. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:46:52Z), 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/QZWFM2550899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf531043674459187c47d96202aedd8beffb129a9b0a8b7e246dd4912853f430e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZWFM2550900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755ee9af2a630652e5c92506b523f24e5dd05f0c3b01e011f0447cef0f65ab0d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZWFM2550901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec2035880d5c697272261ffaf29004ee928f6c4713ba1d87e0893745e740094. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:24:44Z), 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/QZWFM2550902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d5951b29e03e677e0657e348c07bbbc24273e744c6d429ccc183115737b9f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFM2550903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5703dc7985c71e57ff076781979ddb5516664aed1ddc8bda16a5d3efe516140. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:34:50Z), 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/QZWFM2550904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5480d7943208bfe00482b56836f98cfc8d6f20d0764e525e28096edc3f6b74bc. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZWFM2550905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59c2d60353ca51ecff30f633bc704d6cfd3796c6f559c26e4e2b3326045c848. 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/QZWFM2550906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18fc39f3f36f99fa0683f6accbfa562ad1ad8e9661787b5e587115651de1b6e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZWFM2550907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec48b4b53c64b4155fcfe5e3c287a5886cc718410fc98f7a44432e823795f2ed. 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/QZWFM2550908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618f575da2160b3a11ccd599e0e9bdd6327980d620aa06378773cf6cb6cfed3d. 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/QZWFM2550909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b7fa719919769b9df532ce8399ce0e7b2a4a9af24db6de36463ae0e3cf5d6b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWFM2550911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf0d1411106e616348660e7dec394965fe1d035cfab6aa22cc3f8428be8590a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFM2550912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d48aed50ad9c4dd736ca3ace1f41f71bb33f23d88d4fa988fed52004192e1e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFM2550913.